Shingles and Nerve Pain: When a Viral Infection Affects the Nervous System

Shingles is a reactivation of the varicella-zoster virus, the same virus that causes chickenpox. When it affects the nerves, it can lead to a painful rash and, in some people, longer-lasting nerve pain called postherpetic neuralgia.

Overview

Shingles is a viral infection caused by reactivation of the varicella-zoster virus. After a person has chickenpox, the virus does not fully leave the body. Instead, it stays inactive in nerve tissue and may become active again years later, causing shingles.

Because the virus lives in the nervous system, shingles often causes both a skin rash and nerve-related symptoms. The rash usually appears as a band or patch of blisters on one side of the body or face. At the same time, many people feel burning, stabbing, tingling, or deep aching pain in the affected area.

For some, the pain improves as the rash heals. For others, nerve pain continues for weeks, months, or occasionally longer. This lingering pain is called postherpetic neuralgia, which is one of the best-known complications of shingles.

Symptoms

Shingles often begins with unusual skin sensations before any rash appears. A person may notice pain, tingling, itching, burning, or increased sensitivity in a specific area. This phase may last a few days and can sometimes be mistaken for another condition, especially if the rash has not yet developed.

The rash then appears, typically on one side of the chest, back, abdomen, or face. It starts as red patches and quickly forms clusters of fluid-filled blisters. Over time, the blisters dry, crust over, and heal. Some people also feel tired, have a headache, or develop a low-grade fever.

Nerve pain can vary widely. Some describe it as sharp or electric, while others feel throbbing, burning, or extreme tenderness to light touch. In more severe cases, even clothing brushing the skin can be uncomfortable. If the virus affects the face or eye area, symptoms may include facial pain, eye redness, or vision-related problems, which need prompt medical attention.

• Burning, tingling, or stabbing pain
• A one-sided blistering rash
• Skin sensitivity or itching
• Fatigue, headache, or mild fever
• Ongoing pain after the rash heals

Causes and Risk Factors

The direct cause of shingles is reactivation of the varicella-zoster virus. Doctors do not always know exactly why the virus becomes active again in one person and not another. However, changes in immune function appear to play an important role.

Age is one of the strongest risk factors. Shingles becomes more common as people get older, partly because the immune system naturally changes over time. People with weakened immunity may also be at higher risk, including those with certain illnesses or those receiving treatments that suppress the immune system.

Stress, physical illness, and major strain on the body may contribute in some cases, although they are not considered the sole cause. A history of chickenpox is necessary for shingles to occur, because shingles comes from reactivation of that earlier infection rather than from a new exposure.

The risk of persistent nerve pain after shingles is also higher in some groups. Older adults, people with more severe initial pain, and those with a more extensive rash are more likely to develop postherpetic neuralgia. When shingles involves the face, the condition may overlap with other nerve-related concerns that require close assessment by a specialist.

Diagnosis

Doctors often diagnose shingles based on the pattern of symptoms and the appearance of the rash. The combination of one-sided pain and a stripe-like blistering eruption is usually very characteristic. A clinician will ask when symptoms started, where the pain is located, and whether there has been previous chickenpox infection or vaccination.

If the rash is unusual or the diagnosis is uncertain, laboratory testing may be used. A sample from a blister can sometimes help confirm varicella-zoster virus. This can be useful when the rash is mild, when immune status is altered, or when symptoms resemble another skin or nerve condition.

Further evaluation may be needed if shingles affects the eye, ear, or face, or if weakness, balance problems, or severe headache are present. In these situations, specialists may look for complications involving nearby nerves or the central nervous system. Imaging or specialist neurological evaluation is not needed for most routine cases, but it can be important in more complex presentations.

Treatment Options

Treatment for shingles usually aims to reduce viral activity, relieve pain, support skin healing, and prevent complications. Antiviral medicines are commonly prescribed, especially when treatment begins early after the rash appears. Pain relief may include simple analgesics or other medicines chosen according to the type and severity of nerve pain.

For ongoing nerve pain, care may need to continue after the skin has healed. Doctors may suggest treatments used for neuropathic pain, topical therapies, or other supportive approaches depending on the person’s symptoms and overall health. If discomfort persists, a specialist may evaluate for postherpetic neuralgia and discuss longer-term pain management.

If shingles affects the face, eye, or ear, urgent specialist treatment may be needed to help protect vision, hearing, or facial nerve function. In selected situations, doctors may coordinate care with neurology, dermatology, ophthalmology, or pain medicine teams. Supportive hospital-based care can be appropriate when symptoms are severe, immunity is reduced, or complications are suspected.

In centers with multidisciplinary services, diagnostic workup may include neurological examination and, when clinically indicated, MRI to assess possible complications affecting the nervous system. Near the end of the care pathway, patients seeking international evaluation may also learn that Acibadem International’s multidisciplinary specialists and JCI-accredited hospitals diagnose and treat shingles-related neurological complications when needed.

Prevention and Self-Care

Vaccination is one of the most effective ways to lower the risk of shingles and postherpetic neuralgia. Adults who are eligible should discuss shingles vaccination with their doctor, especially as they get older or if they have health conditions that increase risk. Recommendations may differ by age, country, and immune status.

Self-care during shingles focuses on comfort and protecting the skin. Keeping the rash clean and dry, wearing loose clothing, and avoiding scratching can help reduce irritation. Cool compresses may soothe the area, and rest can support overall recovery.

People with shingles should also take steps to reduce spread of the virus to others who are vulnerable. The fluid from active blisters can transmit varicella-zoster virus to someone who has never had chickenpox or has not been vaccinated, causing chickenpox rather than shingles. Covering the rash and avoiding close contact with newborns, pregnant people without immunity, and immunocompromised individuals is important until blisters crust over.

• Ask a doctor whether shingles vaccination is appropriate
• Keep the rash clean and covered
• Wear soft, loose-fitting clothing
• Avoid scratching or picking at blisters
• Limit contact with high-risk individuals until the rash has crusted

When to See a Doctor

Anyone who suspects shingles should contact a doctor promptly, ideally as soon as pain or rash begins. Early treatment may help shorten the course of illness and reduce the chance of complications. This is particularly important for older adults and people with weakened immune systems.

Urgent medical attention is needed if the rash is near the eye, on the face, or inside the ear, or if there are symptoms such as facial weakness, hearing changes, confusion, severe headache, or spreading rash. These features may suggest complications that need specialist care. Persistent pain after the rash heals also deserves assessment, as targeted treatment may improve comfort and quality of life.

Medical review is also important when symptoms do not follow the usual pattern, when pain is severe, or when healing seems delayed. Conditions such as pain management support or referral to a neurology specialist can be helpful if nerve pain becomes difficult to control in daily life.

Frequently asked questions

What is the connection between shingles and nerve pain?

Shingles develops when the varicella-zoster virus reactivates in nerve tissue. Because the virus affects nerves as well as skin, it can cause burning, stabbing, or sensitive pain before, during, and after the rash.

Can nerve pain continue after shingles is gone?

Yes. Some people continue to feel pain after the rash has healed, a condition called postherpetic neuralgia. This is more common in older adults and in people who had more severe shingles symptoms.

Is shingles contagious?

Shingles itself is not passed from person to person in the same way as a cold. However, fluid from shingles blisters can spread varicella-zoster virus to someone who is not immune, causing chickenpox.

How quickly should treatment start?

Treatment should begin as soon as possible after shingles is suspected, especially within the first few days of rash onset. Early antiviral treatment may help reduce symptom duration and lower the risk of some complications.

Who is more likely to get shingles?

People who have had chickenpox can develop shingles later in life. Risk is higher with increasing age and in those with weakened immune systems or certain medical conditions.

Can shingles affect the face or eyes?

Yes. Shingles can involve nerves of the face and the area around the eye, which may lead to serious complications if not treated promptly. Eye pain, redness, or changes in vision should be assessed urgently.

References

• World Health Organization
• Centers for Disease Control and Prevention
• National Institute of Neurological Disorders and Stroke
• National Health Service
• Mayo Clinic

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.