Questions to Ask at Your Asthma Review: Triggers, Inhaler Technique and Follow-Up

The appointment letter says ten minutes. You have a year’s worth of half-remembered wheezy nights, a reliever inhaler that seems to empty faster than it used to, and a vague sense that the cat may or may not be involved. By the time you sit down, the questions you meant to ask have mostly evaporated.

That is the ordinary problem with asthma reviews. They are short, they tend to run on a questionnaire, and the person being reviewed often leaves having answered everything and asked nothing. Yet the review is one of the few scheduled moments in the year when a clinician is paid to look at the whole picture: triggers, technique, control and what happens next.

Knowing the right questions to ask at asthma review time changes the appointment from a form-filling exercise into a plan. This guide walks through what the review is checking, why each part matters, and the questions worth writing on the back of your hand before you go in.

What actually happens at an asthma review?

An asthma review is a planned check-up, usually once a year, where a nurse, pharmacist or doctor looks at how well your asthma is controlled and whether your treatment still fits. The NHS recommends that everyone with asthma has at least one review a year, with more frequent checks when symptoms are not settled or treatment has recently changed.

Most reviews follow a recognizable shape. First comes a set of control questions: how often you have had symptoms in the day, whether asthma has woken you at night, how many times you have needed your reliever inhaler, and whether anything has stopped you doing normal activities. Next the reviewer asks about flare-ups. An exacerbation is the clinical word for a flare-up, a period when symptoms worsen enough to need extra treatment, an urgent appointment or a hospital visit. Any course of oral steroid tablets since the last review counts.

Then the practical part. The reviewer should ask to see you use your inhaler, not just ask whether you use it. If you have a peak flow meter, a hand-held device that measures how fast you can blow air out, you may be asked to blow into one in the room. Some practices also perform spirometry, a breathing test that measures how much air you can force out in one second and in total.

Finally, the review should end with a written asthma action plan: a one-page document that says what your usual treatment is, how to recognize worsening asthma, and what to do and whom to contact at each stage. If you leave without one, or with an unchanged copy you have never read, the review has only done half its job.

The questions below slot into each of those stages. The aim is not to challenge the clinician but to make sure the ten minutes answer the things that actually affect your breathing.

How long is an asthma review, and how do you prepare for it?

Appointment lengths vary by practice and by country, but a routine asthma review is typically booked as a standard primary care slot, often in the range of 10–20 minutes, and longer when spirometry is included or a child is being seen. The NHS describes the annual review as a routine appointment rather than an extended consultation, which is exactly why preparation matters so much.

Preparation does not need to be elaborate. Three things make the biggest difference.

Bring every inhaler and device you currently use, including the one gathering dust in a bag. The reviewer can only check technique on a device that is in the room, and seeing all of them often reveals that two prescriptions have quietly overlapped or that a spacer was never collected.

Bring a rough tally of the past four weeks: nights disturbed, days with symptoms, and roughly how often you reached for your reliever. If you have been recording peak flow, bring the readings or the app. Memory flattens these numbers; most people underestimate how often they use a reliever until they count.

Write down two or three specific questions. Not “is my asthma OK?” but “my symptoms are worse on cold mornings, what should I do differently?” or “I was given a new inhaler in the spring and I am not sure I am using it right.” Specific questions get specific answers.

It also helps to think back over the year for anything that changed: a new job, a new pet, a house move, a different cleaning product, starting a new medicine for another condition. Some blood pressure medicines and some over-the-counter pain relievers can worsen asthma in certain people, and the reviewer cannot ask about what they do not know has changed. A one-line list of life changes is often more revealing than the questionnaire itself.

The asthma annual review questionnaire: what the control questions are really asking

Most reviews use a short validated questionnaire. The names differ, but the questions converge on the same measures of control over a recent period, usually the last one to four weeks. Understanding what each question is probing makes your answers more useful and your own questions sharper.

“How often have you had symptoms during the day?” is asking how inflamed and twitchy your airways are at baseline. Asthma is a long-term condition in which the lining of the airways is inflamed and the muscles around them tighten too easily; daytime symptoms more than a couple of times a week usually suggest that inflammation is not fully suppressed.

“Has asthma woken you at night?” carries extra weight. Night waking is one of the clearest signs of poor control, because airway narrowing naturally worsens in the early hours and a well-controlled airway should cope with that dip. Even one disturbed night a week is worth flagging.

“How often have you used your reliever?” is a proxy for how often your airways are tightening enough to notice. Needing a reliever most days is a signal, not a lifestyle.

“Has asthma limited your activities?” catches the quiet adaptations people make without noticing: taking the lift, skipping a run, avoiding a smoky venue.

The honest difficulty with these questionnaires is that people adapt. Someone who has lived with mild wheeze for twenty years may genuinely rate it as “no symptoms” because it feels normal. The question to ask your reviewer here is direct: “Based on my answers, would you call my asthma well controlled, partly controlled or uncontrolled, and what would need to change for it to be fully controlled?” International guidelines, including those summarized by the Mayo Clinic, use exactly those three categories, and hearing the word out loud is often the moment a review becomes real.

Questions to ask at your asthma review about triggers

A trigger is anything that sets off asthma symptoms or makes the underlying inflammation worse. The two are not the same, and it helps to ask which kind yours are. Cold air or exercise may provoke a short, sharp tightening without changing the long-term picture. Ongoing exposure to something you are allergic to, such as house dust mite, animal dander or mold, can keep the airway lining inflamed week after week, so that smaller provocations tip you over.

Useful questions on triggers include:

• “From my pattern of symptoms, which triggers do you think matter most for me?”
• “Is it worth testing for specific allergies, or does the history already tell us enough?”
• “My symptoms are worse at work (or at home). How would we work out whether the environment is the cause?”
• “I get symptoms when I exercise. Does that mean my asthma is undertreated, or is that expected?”
• “Are any of my other medicines known to worsen asthma?”

Viral colds are the most common trigger for flare-ups in both adults and children, which is why reviewers ask about vaccination. The NHS advises that people with asthma are offered an annual flu vaccine, and the CDC lists asthma among the conditions that raise the risk of complications from flu. Asking “which vaccines am I eligible for because of my asthma?” is a trigger question in disguise.

Smoke deserves its own line. Tobacco smoke, including second-hand smoke, is one of the few triggers where the evidence for both symptoms and reduced treatment response is consistent across sources. If anyone in your household smokes, the review is a reasonable place to ask about support to stop, framed as asthma care rather than a lecture.

Finally, ask what to do about triggers you cannot avoid. Nobody can skip winter. The answer usually involves anticipating exposure and following the action plan, and that is a conversation worth having before the first frost rather than after.

Questions to ask at your asthma review about inhaler technique

An inhaler is a precision device that works only when breath, timing and hand movement line up. Get the sequence slightly wrong and a large share of the medicine lands on the back of the throat instead of in the airways, where it does nothing useful. Studies summarized by major clinical centers consistently find that a substantial proportion of people, including those who have used inhalers for years, make at least one technique error. The exact figure varies by device and study, so treat any single percentage with caution; the practical point is that technique drifts and needs rechecking.

The single most valuable sentence at a review may be: “Can you watch me use each of my inhalers and tell me what I am doing wrong?” Not “do you want to check my technique”, which invites a polite no, but a direct request to be observed.

Follow-up questions worth asking:

• “Should I breathe in fast or slow with this device?” Pressurized metered-dose inhalers, the aerosol spray type, generally need a slow, steady breath coordinated with pressing the canister. Dry powder inhalers generally need a quick, deep breath to pull the powder out. Using the wrong breath for the device is one of the most common errors.
• “How long should I hold my breath after inhaling?” Holding the breath lets particles settle in the airways; the NHS describes holding for around ten seconds, or as long as is comfortable.
• “Would a spacer help me?” A spacer is a plastic chamber that attaches to an aerosol inhaler, holding the spray so you can breathe it in over a few breaths without coordinating the press and the inhale. The NHS recommends spacers for most people using this type of inhaler, not only children.
• “Am I on more than one type of device, and could they be simplified?” Mixing a slow-breath device with a fast-breath device is a recipe for using at least one of them wrongly.

Ask also how to tell when an inhaler is empty, how to clean it, and whether to rinse your mouth after a steroid preventer to reduce hoarseness and oral thrush. Small habits, checked once a year, are where a lot of asthma control is quietly won or lost.

How is asthma monitored between reviews?

Asthma is monitored in three overlapping ways: by symptoms, by breathing measurements, and by how much treatment is needed to stay stable. A good review explains which of these you should be tracking yourself and which are the clinician’s job.

Symptom tracking is the simplest and, for many people, the most useful. Noting night waking, reliever use and days with symptoms gives the next review real data rather than impressions. A notes app or a paper diary works equally well.

Peak flow is the home breathing measurement. You take a full breath in, blow out as hard and fast as you can into the meter, and record the best of three attempts. The number reflects how open your large airways are. What matters is not the figure itself but how it compares with your personal best, measured when you were well. The NHS describes peak flow monitoring as a way to spot a worsening before symptoms become obvious, and many action plans use thresholds based on a percentage of personal best to tell you when to step up. The question to ask is: “What is my personal best, and what readings should make me act?”

Spirometry is the clinic-based test. It measures FEV1, the volume of air you can force out in the first second, and compares it with the total volume you can exhale. A reduced ratio points toward airway narrowing. Mayo Clinic describes spirometry as a core test both for diagnosing asthma and for tracking lung function over time, often repeated before and after a reliever to see how much the airways open up. It is not needed at every review, but it is reasonable to ask when you last had one and whether another is due.

Not everyone needs daily peak flow readings. For someone with well-controlled asthma and a reliable sense of their own symptoms, a short burst of monitoring during colds or seasonal changes may be enough. Ask which pattern your reviewer suggests for you, and why.

Preventer, reliever and the written action plan: what to clarify

Asthma medicines fall into two broad roles, and most confusion at reviews traces back to mixing them up. A preventer is taken regularly to reduce the underlying inflammation in the airway lining; it works slowly, over days to weeks, and does nothing immediate when you are wheezy. A reliever acts within minutes to relax the muscle around the airways and ease tightness, but it does not treat the inflammation underneath. Some newer regimens combine both roles in one device, which is why the labels on your own inhalers may not match this neat split. Your reviewer, not this article, is the person to explain which is which for you.

Area	What the reviewer checks	A question worth asking
Preventer	Whether you take it every day as prescribed, and whether symptoms suggest inflammation is controlled	“If I feel fine, do I still need this every day, and what happens if I stop?”
Reliever	How often you use it and how many have been prescribed over the year	“How much reliever use would make you want to change my plan?”
Technique	Observed use of each device, spacer use, mouth rinsing	“Can you watch me use this and correct me?”
Action plan	Whether you have a current written plan and understand each zone	“Can we go through my plan line by line so I know what each step means?”
Follow-up	Date and trigger for the next review	“When should I come back, and what would bring that forward?”

A written action plan is the glue between appointments. The NHS and Mayo Clinic both recommend that every person with asthma has one, and evidence summarized by these sources suggests that people who use a plan are less likely to need emergency care. Most plans use a traffic-light layout: a green zone describing your usual treatment when well, an amber zone describing early worsening and what to adjust, and a red zone describing an emergency. Ask who to contact in each zone, including out of hours, and keep a photo of the plan on your phone.

Never change how you take a prescribed medicine on the basis of a review you read about rather than one you attended. Every adjustment, up or down, belongs to the prescribing clinician.

Asthma symptoms in adults: what to report, even if it feels minor

Adult asthma has a habit of hiding in plain sight. The classic picture, a wheeze you can hear across a room, is only one presentation. Cleveland Clinic and MedlinePlus both describe a persistent cough, especially at night or after exercise, chest tightness, and breathlessness that comes and goes as equally common ways asthma shows itself in adults. Because these can be dismissed as being unfit, getting older, or “just a cough that lingers”, they often go unreported at review.

This is not a checklist for diagnosing yourself. It is a prompt for what to mention to a clinician who already knows you have asthma. Things worth reporting include:

• Any cough that outlasts a cold by more than a couple of weeks, or that is worse lying down.
• Breathlessness on stairs or hills that you have started to plan around.
• Tightness in the chest on cold mornings, during exercise or after laughing.
• Symptoms that cluster around a particular place, such as work or a relative’s house.
• Needing your reliever before activities you used to do without it.

Adults also develop other conditions that mimic or worsen asthma. Acid reflux, nasal polyps, allergic rhinitis, obesity, anxiety and some heart conditions can all produce breathlessness or make asthma harder to control. A reviewer who hears “I am more breathless than last year” should be thinking about all of these, not reflexively adjusting an inhaler. A good question is: “Could anything other than asthma be contributing to how I feel, and how would we check?”

Adult-onset asthma, which begins after childhood, is sometimes less obviously allergic and may be more persistent. If your asthma started in adulthood, ask whether that changes how your reviewer thinks about triggers and monitoring. The honest answer is often “somewhat”, and that nuance is worth hearing from the person who has your records in front of them.

How does asthma affect children, and what changes at a child's review?

Asthma is one of the most common long-term conditions in childhood. The CDC estimates that roughly 1 in 13 people in the United States have asthma, and children are well represented in that figure. Small airways narrow proportionally more than large ones for the same degree of inflammation, which is one reason a child can go from mildly coughing to visibly struggling faster than an adult.

In children, asthma often announces itself as a cough that drags on after every cold, wheeze with viral infections, or getting tired and breathless at play before friends do. Night cough is common and easily blamed on the cold itself. The NHS notes that asthma can be difficult to diagnose confidently in very young children because wheeze with colds is so common in toddlers who will never develop asthma, so a child’s review may include more watching and waiting than a parent expects.

A child’s review usually involves the parent or carer as much as the child. Expect questions about school absence, sport, sleep, and how the child is using the inhaler at school as well as at home. Spacers are strongly recommended for children using aerosol inhalers, often with a face mask for the youngest. Technique is checked with the child doing it, not the parent describing it, because what happens in a clinic room and what happens at seven in the morning before school can differ widely.

Questions worth asking at a child’s review:

• “Does the school have a copy of the action plan and a spare inhaler and spacer?”
• “How do we tell the difference between a cold and an asthma flare in my child?”
• “At what point should I bring them in rather than following the plan at home?”
• “Is my child’s growth and activity being affected, and is that being tracked?”

Older children should be encouraged to answer for themselves. A teenager who can describe their own symptoms and demonstrate their own technique is building the habits that will carry them into adult reviews. Medicine decisions for children, including any adjustment to what they take, sit entirely with the prescribing clinician.

Who usually needs a review sooner, and who is usually asked to wait?

The annual review is a floor, not a ceiling. Several situations should bring the next appointment forward, and the review itself is the place to ask which apply to you.

People commonly reviewed sooner include anyone who has had a flare-up needing oral steroids, an urgent appointment or an emergency department visit since their last review. The NHS advises a follow-up within a short period after any asthma attack, and Mayo Clinic describes stepping up monitoring after any exacerbation. The same applies after a change in preventer treatment, because the preventer’s full effect builds over weeks and the clinician needs to see whether the change worked before deciding on the next step. Anyone starting a new job with dust, fumes or animal exposure, anyone whose reliever use has crept up, and anyone newly pregnant may also be seen earlier; asthma can change in pregnancy in either direction, and both NHS and Mayo Clinic advise that treatment is reviewed rather than stopped.

Who is reasonably asked to wait for the routine slot? Someone whose symptoms are stable, who is not waking at night, who uses a reliever rarely and who has a current action plan they understand. For this group, the annual review is confirmation rather than intervention. Being told “you are well controlled, see you next year” is a good outcome, not a brush-off, provided the technique check and action plan were still done.

There is a middle group who should not wait and often do: people who feel broadly fine but are using a reliever several times a week, or who have quietly stopped a preventer because they felt well. Both patterns can precede a flare. If either describes you, the question to ask is simple: “Should I be seen before my next routine review, and what would you want to see change in the meantime?”

Whatever the interval, the decision about timing and treatment belongs to the treating team. Your part is to make sure they have the information to decide well.

What the following weeks usually look like after a review

If nothing changed at your review, the following weeks look like the previous ones, with one difference: you now know what to watch for. Use the first fortnight to put the technique corrections into practice while they are fresh. Most people revert to old habits within weeks unless they deliberately rehearse the new sequence, so a note by the inhaler or a short video from a reputable health service can help.

If your preventer was adjusted, expect a lag. Inhaled anti-inflammatory treatment typically begins to reduce symptoms within days, but the full effect on airway inflammation builds over several weeks. The NHS and Mayo Clinic both describe preventer medicines as taking time to work and needing daily use to maintain their benefit. This is why reviewers often ask you to come back after a defined interval, commonly somewhere in the range of 4–12 weeks depending on the change, to judge whether it worked. Ask for that date before you leave rather than hoping the system remembers.

If a trigger-reduction plan was agreed, such as dust mite covers, changes at work or stopping smoking, the timeline is longer still. Airway inflammation driven by ongoing allergen exposure can take months to settle once exposure falls, and the improvement is often noticed first as fewer disturbed nights rather than a dramatic change in daytime breathing.

During this period, peak flow monitoring earns its keep. A rising personal best or fewer dips below your action-plan threshold is objective evidence that the change is working, and it gives the next appointment something concrete to look at. Keep the diary simple enough that you will actually fill it in.

Two things should prompt earlier contact rather than waiting out the interval: a flare that reaches the amber zone of your plan and does not settle as the plan predicts, or any side effect that bothers you enough that you are tempted to stop a medicine. Stopping without discussion is the most common way a reasonable treatment change gets wrongly judged a failure.

What people often get wrong about asthma reviews

Some myths survive because they sound sensible. These are the ones that most often undermine a review.

“I only need the review if I have been bad this year.” The opposite is closer to the truth. A review when you are well is when a personal best peak flow can be measured, when technique can be corrected calmly, and when an action plan can be written without the pressure of a flare.

“Needing my reliever a lot just means I have bad asthma.” Frequent reliever use is a signal that the underlying inflammation is not controlled, and it is one of the main things a review is designed to pick up. It is information for your clinician, not a verdict on you.

“I have used inhalers for years, so my technique is fine.” Technique drifts over time, and devices change. Clinical sources consistently report that errors are common in experienced users. A yearly observed check is not an insult.

“If I feel fine I can stop my preventer.” Feeling fine on a preventer is usually evidence that it is working, not that it is no longer needed. Any decision to step down treatment should be made with the prescribing clinician, who may do it gradually and with monitoring.

“Asthma is a childhood thing; adults grow out of it.” Some children do see symptoms fade, but asthma can persist, return, or begin for the first time in adulthood. MedlinePlus describes it as a long-term condition that can affect people of any age.

“Steroid inhalers are the same as the steroids athletes misuse.” They are not. Inhaled corticosteroids are anti-inflammatory medicines delivered in small amounts to the airway lining; they are unrelated to anabolic steroids. The NHS describes them as the mainstay of preventer treatment. If you have concerns about side effects, raise them at the review rather than quietly skipping doses.

“The questionnaire is the review.” The questionnaire is the start. Observed technique, a current action plan and a clear follow-up date are the parts that actually change outcomes.

Questions to ask your care team: a short list to take in with you

Pick the five that matter most to you. Asking all of them in a ten-minute slot is unrealistic; asking none of them is a wasted year.

About control

• “Would you describe my asthma as well controlled, partly controlled or uncontrolled right now?”
• “What would need to change for it to count as fully controlled?”

About triggers

• “Which of my triggers do you think matters most, and which can we realistically reduce?”
• “Which vaccines am I eligible for because of my asthma?”
• “Do any of my other medicines affect my asthma?”

About technique

• “Can you watch me use each inhaler and correct what I am doing wrong?”
• “Should I be using a spacer, and how do I clean and replace it?”
• “How do I know when this device is empty?”

About monitoring and the plan

• “What is my personal best peak flow, and what readings should make me act?”
• “Can we go through my action plan line by line, including who to contact out of hours?”
• “When was my last spirometry, and is another due?”

About follow-up

• “When should I come back, and what would bring that forward?”
• “If I have a flare, do I need to be seen afterwards even if I feel better?”

One more, often skipped: “Is there anything in my record that surprised you?” Reviewers see prescribing data, previous spirometry and past attendances that you may not remember. Inviting them to comment on the whole record sometimes surfaces a pattern, such as reliever prescriptions climbing year on year, that neither of you had noticed.

Write the answers down. The value of a review lies in what you can recall and act on in a bad week months later, not in how it felt in the room.

When to call your doctor

A review is a planned conversation about control. Some situations should not wait for one. Your written action plan is the first reference, and if its amber-zone steps are not settling your symptoms as it says they should, that alone is a reason to contact your care team the same day.

Seek urgent medical help, or call emergency services, if you or your child experience any of the following red-flag signs described by the NHS and Mayo Clinic:

• Breathlessness so severe that it is hard to speak in full sentences, eat or sleep.
• Breathing that is fast and labored, with the skin pulling in between the ribs or at the base of the neck.
• A reliever inhaler that is not helping, or whose effect wears off within a short time.
• Lips or fingertips turning blue or grey, or a grey, sweaty appearance.
• Peak flow falling into the red zone of your action plan.
• Drowsiness, confusion or exhaustion during an attack.
• In a child: struggling to breathe, unable to talk or walk normally, or becoming unusually quiet and floppy.

Contact your doctor or asthma nurse within a day or two, rather than waiting for the annual review, if you notice reliever use increasing over several days, symptoms waking you more than once a week, a cough or wheeze that lingers after a cold, or any side effect that is making you reluctant to take a prescribed medicine. After any flare that needed oral steroids or an emergency visit, the NHS advises arranging a follow-up appointment even if you feel recovered, because the weeks after an attack carry a higher risk of another.

None of this replaces the judgment of the clinician who knows your history. The purpose of the red-flag list is to lower the threshold for picking up the phone, not to help anyone decide to manage a severe attack at home. When in doubt, call.

Frequently asked questions

How long is an asthma review?

A routine asthma review is usually a standard primary care appointment, typically in the range of 10–20 minutes, and longer when spirometry is performed or a child is being seen. Because the slot is short, bringing your inhalers, a rough count of recent symptoms and reliever use, and two or three written questions makes a real difference to what gets covered.

What is in the asthma annual review questionnaire?

Most questionnaires ask about a recent period, often the past four weeks: daytime symptoms, night waking, reliever use and whether asthma has limited your activities. Some also ask about flare-ups and courses of oral steroids. The answers place your asthma into well controlled, partly controlled or uncontrolled, which guides the rest of the review and any treatment discussion.

How is asthma monitored between appointments?

Asthma is monitored through symptoms, breathing measurements and the amount of treatment needed to stay stable. At home that usually means noting night waking and reliever use, and for some people recording peak flow against a personal best. In clinic, spirometry measures lung function more precisely. Your reviewer can advise which pattern of monitoring suits your level of control.

What are common asthma symptoms in adults that I should report?

Adults with asthma should report persistent cough, especially at night or after exercise, chest tightness, breathlessness on exertion that they have begun planning around, and symptoms clustering around a particular place such as work. These are not for self-diagnosis but are the details a reviewer needs, because adult asthma often presents without the obvious wheeze people expect.

How does asthma affect children differently from adults?

Children have smaller airways, so the same degree of inflammation narrows them proportionally more, and symptoms can escalate faster. Childhood asthma often appears as a cough after every cold, wheeze with viral infections, or tiring at play before friends do. Reviews for children involve the parent or carer, check technique with a spacer, and ask about school, sleep and activity.

Why does the nurse want to watch me use my inhaler?

Because technique errors are common even in long-term users, and the only reliable way to find them is to observe. Breathing in at the wrong speed for the device, not holding the breath, or poor coordination can leave much of the medicine in the mouth and throat. An observed check once a year is standard good practice, not a judgment.

Should I ask for spirometry at every asthma review?

Not necessarily. Spirometry is central to diagnosis and useful for tracking lung function over time, but many routine reviews rely on symptom questions and peak flow. It is reasonable to ask when you last had spirometry and whether another is due, particularly if symptoms have changed, treatment has been adjusted, or you have never had a baseline measurement.

What should my asthma action plan include?

A written action plan should state your usual daily treatment, how to recognize worsening asthma using symptoms and, if you use one, peak flow thresholds, what to do at each stage, and whom to contact including out of hours. Most use a green, amber and red layout. Ask to go through it line by line at the review and keep a photo on your phone.

Can I stop my preventer inhaler if I feel well?

Not without discussing it with your prescribing clinician. Feeling well on a preventer usually means it is doing its job of controlling airway inflammation, which builds up again when the medicine is withdrawn. If you want to reduce treatment, raise it at the review; clinicians may step down gradually with monitoring rather than stopping, and the decision rests with them.

When should I be seen before my next routine asthma review?

Ask to be seen earlier after any flare-up that needed oral steroids or urgent care, after a change in preventer treatment, if reliever use is creeping up, if asthma is waking you at night, if you start a job with new exposures, or if you become pregnant. Your clinician can tell you which of these apply and what interval they would prefer.

References

• NHS: Asthma
• NHS: Asthma treatment
• Cleveland Clinic: Asthma
• MedlinePlus: Asthma

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.