Postherpetic neuralgia (PHN) is nerve pain that continues in the area of a shingles rash after the skin has healed, often as burning, stabbing, or touch-sensitive pain. It mainly affects adults over 50 who have had shingles, and it can disrupt sleep, work, and daily comfort for months or longer. Board-certified pain specialists at California Pain Consultants in San Diego diagnose PHN and build treatment plans that combine medication, targeted procedures, and neuromodulation when needed.
- Burning, stabbing, or electric-like pain
- Skin pain from light touch or clothing
- Sleep disruption and fatigue
- Pain that continues after the rash clears
A personalized evaluation can help identify the affected nerve pattern, understand how symptoms are limiting daily life, and build a treatment plan focused on comfort, function, sleep, and quality of life.
What Is Post Herpetic Neuralgia?
Postherpetic neuralgia is neuropathic pain—pain caused by irritated or damaged nerves—that remains in the same area affected by shingles. The CDC’s clinical guidance defines PHN as pain that persists where the rash was located and continues more than 90 days after the rash began.
How Common Is PHN?
Shingles itself is common: the CDC estimates that about 1 in 3 people in the United States will have shingles in their lifetime. Of those, about 10% to 18% go on to develop PHN, according to the CDC’s symptoms and complications page. Because the shingles rash typically scabs over in 7 to 10 days and clears within 2 to 4 weeks, pain that keeps going well beyond that window is a signal to look more closely.
How Shingles Affects Nerves
Shingles develops when the varicella-zoster virus, which remains in the body after chickenpox, becomes active again. The virus travels along a sensory nerve and typically produces pain and a blistering rash on one side of the body or face.
Why Pain Can Continue
After the rash resolves, an affected nerve may continue sending abnormal pain signals. The skin may look normal even while the nerve remains sensitive, which is why the pain can feel confusing or difficult to explain.
Why Light Touch May Hurt
Some people develop allodynia, meaning a normally comfortable sensation is interpreted as pain. Clothing, a bedsheet, shower water, or a gentle touch may trigger burning or sharp discomfort.
Symptoms and Risk Factors
Symptoms usually follow the same nerve path where the shingles rash appeared. Their intensity and duration vary from person to person.
Common Symptoms
- Burning, aching, stabbing, or electric-like pain
- Tingling, itching, or numbness
- Extreme sensitivity to light touch
- Pain that interferes with sleep, movement, or concentration
- Discomfort that persists for weeks, months, or longer
Who Has a Higher Risk?
- Older adults, especially after age 50
- People who had a severe shingles rash or intense initial pain
- People with a weakened immune system
- People whose shingles involved the face or eye area
- People who could not begin shingles treatment promptly
Age is the clearest pattern. The CDC reports that the risk of PHN increases with age and that people younger than 40 rarely experience it.
The Daily and Emotional Impact
Persistent nerve pain can affect more than physical comfort. Interrupted sleep may lead to fatigue and difficulty concentrating. Some people avoid clothing, exercise, social activities, or touch because they are worried about triggering pain. A complete care plan should consider these practical and emotional effects—not only a pain score.
How Post Herpetic Neuralgia Is Diagnosed
Diagnosis is usually based on a history of shingles, the location and character of the pain, and a focused physical examination. Your provider may gently assess skin sensation and map the area affected by burning, numbness, or touch sensitivity. Your evaluation may include:
- When the shingles rash began and healed
- Where the pain is located and how it feels
- Current medications and previous treatments
- Sleep, mood, movement, and daily activities affected by pain
- Other health conditions that may influence treatment choices
- Signs that suggest another source of nerve pain
Additional tests are not always necessary, but they may be recommended when symptoms are unusual or another condition needs to be ruled out.
Conditions That Can Look Similar
Several other problems can cause burning or stabbing pain in a band across the chest, back, or face. Your provider will consider possibilities such as a pinched spinal nerve, rib or muscle injury, diabetic or other neuropathy pain, or trigeminal nerve pain in the face. A clear history of a shingles rash in the same location is usually what confirms PHN.
Treatment Options for Post Herpetic Neuralgia
Treatment is individualized. Many patients benefit from a stepwise plan that begins with lower-risk options and adds targeted procedures only when symptoms and health history support them.
Medicines for Nerve Pain
Certain anticonvulsant or antidepressant medications can reduce abnormal nerve signaling. These medicines are used for their effect on neuropathic pain and are selected according to symptoms, other medications, and possible side effects.
Topical Treatments
Lidocaine patches or carefully selected capsaicin products may help localized skin sensitivity. A clinician can explain how to use these products safely and whether irritated or healing skin changes the recommendation.
Targeted Injections or Nerve Blocks
For selected pain patterns, a targeted nerve block or another image-guided injection may be considered. The appropriate procedure depends on the affected nerve, symptom location, medical history, and response to conservative care. For pain across the chest wall or ribs, for example, an intercostal nerve block may be discussed. Some patients with pain involving the face or arm may be evaluated for a sympathetic block, such as a stellate ganglion block.
Neuromodulation for Persistent Pain
If severe symptoms continue despite appropriate treatment, peripheral nerve stimulation or spinal cord stimulation may be discussed for carefully selected patients.
A Stepwise, Personalized Care Plan
1. Understand the Pain Pattern
The first step is confirming that the pain follows a prior shingles distribution and identifying touch sensitivity, numbness, sleep disruption, and functional limitations.
2. Start with Appropriate Conservative Care
Medication, topical treatment, gentle activity, sleep support, and practical skin-protection strategies may be combined and adjusted according to response.
3. Consider Targeted Options When Needed
If pain remains limiting, the care team may discuss an injection, nerve-focused procedure, or neuromodulation after reviewing the expected benefits, risks, and alternatives.
Supporting Sleep, Movement, and Well-Being
Small adjustments can make a treatment plan easier to follow while irritated nerves settle. Your care team may recommend strategies such as:
- Soft, loose clothing over sensitive skin
- A consistent sleep schedule
- Gentle movement within comfortable limits
- Pacing activities instead of pushing through a flare
- Stress-management or relaxation techniques
- Support for anxiety, low mood, or social isolation
Physical therapy may help some patients maintain mobility and confidence, but exercises should be adapted to avoid aggravating highly sensitive skin or nerves.
When to Seek Prompt Medical Care
New or active shingles requires timely medical evaluation. Seek prompt care for:
- A rash or pain near the eye, forehead, nose, or ear
- Vision changes, facial weakness, or hearing changes
- A widespread rash, fever, severe headache, or confusion
- New weakness, balance problems, or rapidly worsening symptoms
- Shingles symptoms in someone with a weakened immune system
For pain that remains after the rash heals, schedule an evaluation when symptoms disrupt sleep, work, mobility, mood, or routine activities.
Can Post Herpetic Neuralgia Be Prevented?
Shingles vaccination is the most effective way to reduce the risk of shingles and related complications, including postherpetic neuralgia. Ask your primary care clinician or pharmacist whether vaccination is appropriate for your age, immune status, and medical history. If a new shingles rash develops, contact a healthcare professional promptly. Antiviral treatment is used during active shingles; it is not a treatment for established PHN after the rash has resolved.
Find a Plan for Persistent Nerve Pain
Post Herpetic Neuralgia can interfere with sleep, movement, concentration, and daily comfort. A focused pain evaluation can help clarify your options and create a plan based on your symptoms and goals.
Treatment at California Pain Consultants
California Pain Consultants is a physician-led pain management practice with four clinics in San Diego County: Kearny Mesa, Rancho Bernardo, La Mesa, and Chula Vista. If pain has outlasted your shingles rash, your care team will map the affected nerve area, review what you have already tried, and walk you through the options that fit your health history.
When a procedure is part of your plan, it is performed at the Comprehensive Pain ASC in Rancho Bernardo or the EPC Surgery Center in La Mesa. We accept most insurances. Call (858) 571-3630 or request your appointment to book your appointment at the clinic closest to you.
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Medical references: CDC: Shingles Symptoms and Complications · National Institute on Aging: Shingles. Related California Pain resources: Shingles pain · Neuropathy · Conditions and treatments. This article is for general education and does not replace an individualized medical evaluation. Treatment recommendations depend on diagnosis, health history, current medications, and personal goals.
Frequently Asked Questions About Postherpetic Neuralgia
Find clear, medically responsible answers about Postherpetic Neuralgia, who may be a candidate, what to expect, and when to contact your healthcare team.
What is postherpetic neuralgia?
Postherpetic neuralgia is nerve pain that continues after a shingles rash has healed. The affected nerve and skin can remain unusually sensitive, causing burning, stabbing, aching, itching, or pain from light touch.
Who is more likely to develop postherpetic neuralgia?
Risk increases with age, severe rash or acute shingles pain, facial or eye involvement, and certain conditions that weaken immunity. Prompt antiviral treatment for shingles may reduce complications, but it cannot prevent every case.
Can postherpetic neuralgia be prevented?
Shingles vaccination reduces the chance of shingles and its complications and is the most important prevention strategy for eligible adults. If shingles develops, seek prompt medical care because antiviral treatment works best when started early.
Why does my skin hurt when nothing is touching it?
Damaged sensory nerves can fire on their own, sending pain signals without any trigger. They can also misread gentle touch as pain, a symptom called allodynia. That is why clothing or a bedsheet may hurt even though the skin looks normal. Nerve pain medicines and topical treatments are designed to calm this abnormal signaling.
How long does postherpetic neuralgia last?
Postherpetic neuralgia lasts at least 90 days after the rash begins, by the CDC’s definition, and its total duration varies widely. Some people improve gradually over several months, while others have pain for a year or longer. Treatment aims to reduce pain and improve sleep and function while the nerves settle, and plans are adjusted over time based on response.
Is postherpetic neuralgia permanent?
Not necessarily. Many people see symptoms ease over time, though the pace is unpredictable and some have long-lasting pain. Because there is no way to know in advance how long it will continue, treating pain early with medication, topical therapy, and procedures when needed may help protect sleep, activity, and mood while healing continues.
How is postherpetic neuralgia diagnosed?
Diagnosis is usually based on the history of shingles and pain in the same nerve distribution after the rash resolves. A clinician may examine the skin and nervous system and investigate other causes if the pattern is unusual or weakness, fever, or a new rash is present.
What treatments may help postherpetic neuralgia?
Options may include topical lidocaine or capsaicin, medicines that calm nerve signaling, selected antidepressants, and interventional treatments for carefully chosen patients. The best plan depends on age, kidney function, other medicines, fall risk, pain pattern, and treatment goals.
Will antiviral medicine help my PHN?
Antiviral medicine is used during an active shingles outbreak and is not a treatment for established PHN after the rash has resolved. Once PHN has developed, treatment focuses on nerve pain, using options such as anticonvulsant or antidepressant medicines, lidocaine or capsaicin products, nerve blocks, and neuromodulation for carefully selected patients.
Can a nerve block help postherpetic neuralgia?
A nerve block may help some people with PHN, depending on which nerves are involved and how the pain responds to other care. The injection places medication near the affected nerve to interrupt pain signals. Relief varies between patients, and your specialist will discuss expected benefits, risks, and alternatives before recommending one. A pain specialist may consider a targeted nerve block, peripheral nerve stimulation, spinal cord stimulation, or another intervention when well-chosen conservative treatment has not provided enough relief.
When should I see a pain specialist for PHN?
Consider a pain specialist when pain persists after the rash has healed and is disrupting sleep, work, or daily activity, or when medications are not helping enough or cause side effects. A specialist can offer procedures and neuromodulation that a primary care office typically does not. New eye, facial, or neurologic symptoms need urgent care first. Bring a list of treatments tried, current medicines, and practical goals for the visit.
What symptoms need prompt or emergency care?
Seek prompt care for a new shingles rash, especially near the eye or ear, fever, spreading redness, new weakness, severe headache, confusion, or symptoms in someone with a weakened immune system. Call emergency services for stroke-like symptoms, chest pain, breathing difficulty, or rapidly worsening neurologic changes.