Postherpetic Neuralgia: Symptoms and Treatment

01Definition

What postherpetic neuralgia is

Mayo Clinic describes postherpetic neuralgia as the most common complication of shingles. It causes a burning pain in nerves and skin that lasts long after the shingles rash and blisters have gone. The NHS describes it as long-lasting pain that can happen after shingles, which usually gets better gradually and can be helped by treatment.

Mayo Clinic defines it as pain lasting three months or longer after the rash has healed. This definition does not mean waiting three months to seek help: pain that does not improve where the rash was should be discussed with a doctor.

02Cause

Why shingles can leave nerve pain

Mayo Clinic explains that shingles is caused by the chickenpox virus, which stays in the body for life after chickenpox and can become active again later. The risk rises with age and when the immune system is weakened, for example by chemotherapy. The shingles rash is linked to inflammation of the nerves beneath the skin.

Postherpetic neuralgia happens when nerve fibers are damaged during shingles. Damaged fibers cannot send messages from the skin to the brain normally, so the messages become confused and pain signals are poorly regulated. The NHS notes that it is not known why some people keep having pain long after shingles has gone.

03Symptoms

Symptoms: burning, touch sensitivity, itch

Symptoms usually affect the area of skin where the shingles rash appeared, often a band on one side of the body, typically on the torso. The NHS explains that they usually start while the rash is present or soon after it heals, and rarely weeks or months later. Symptoms may include:

• aching, burning, sharp or jabbing pain, constant or coming and going
• pain from slight touch or pressure, so that even clothing on the area can be unbearable
• pain triggered by changes in temperature
• itching
• numbness or loss of feeling in the skin

The NHS notes that the pain is often mild, but some people have severe pain. Mayo Clinic adds that long-lasting pain can lead to trouble sleeping, tiredness, reduced appetite and depression.

04Risk

Risk factors

Mayo Clinic and the NHS list factors that raise the risk of postherpetic neuralgia after shingles:

• age 60 or older
• a weakened immune system, due to illness, treatments or medicines
• severe shingles, a rash that covered a large area or interfered with daily activities
• other long-term conditions such as diabetes or lung or heart disease
• a rash on the face or torso
• not receiving antiviral medicine within 72 hours of the rash
• not being vaccinated against shingles

05Diagnosis

How it is diagnosed

Postherpetic neuralgia is recognized from the history of shingles and the pattern of pain, itching or altered sensation in the same area of skin. The NHS advises seeing a GP if you have had shingles and pain does not get better where the rash was.

Not every discomfort after shingles means postherpetic neuralgia, and it is not always severe. A doctor can assess the symptoms, their impact on sleep and daily life and any other health conditions before choosing treatment.

06Treatment

Treatment options (groups, not doses)

The NHS explains that postherpetic neuralgia can be difficult to treat and that a GP will usually prescribe medicines according to the pain:

• simple painkillers, sometimes combined with a mild opioid, for mild or moderate pain, which help some people but rarely relieve pain completely
• medicines for nerve pain, from the antidepressant or anti-seizure groups, if simple painkillers have not worked
• skin plasters containing a local anesthetic, for mild pain or when other medicines are not suitable
• a stronger painkiller for a short time if pain is severe

Nerve pain medicines may not work straight away; they usually start at a low dose that is increased gradually, with check-ups for benefit and side effects. If pain is severe, affects daily life or does not respond, a GP may refer you for cognitive behavioral therapy or to a neurologist or pain clinic. Do not change or stop medicines without your prescriber.

07Comfort

Skin care and daily comfort

The NHS suggests several things that may ease symptoms:

• wearing loose cotton or silk clothes to avoid irritating the skin
• protecting sensitive skin with a layer of bandage or a wound dressing under clothes
• holding an ice pack wrapped in a tea towel on the painful area for up to 20 minutes every 2 to 3 hours
• taking cool baths or showers
• keeping a daily pain diary to see how well treatment works

Because temperature changes can trigger pain in some people, stop using cold if it makes the pain worse, and never apply ice directly to the skin.

08Prevention

Prevention: early shingles care and vaccination

Mayo Clinic advises seeing a healthcare professional at the first sign of shingles, noting that pain can start before the rash appears. Starting antiviral medicine within 72 hours of the rash lowers the risk of postherpetic neuralgia, and the NHS agrees that treating shingles as soon as possible helps recovery. Early treatment reduces the risk but cannot guarantee prevention.

Both sources explain that shingles vaccination reduces the risk of shingles and postherpetic neuralgia, and Mayo Clinic notes that vaccination can help prevent future outbreaks even after shingles. Vaccines, eligible ages and funding differ between countries, so ask your doctor or health service about the program where you live. Vaccination prevents shingles; it is not a treatment for existing pain.

09Sources

Where the sources differ

Mayo Clinic (July 2026) defines postherpetic neuralgia as pain lasting at least three months after the rash heals and gives vaccine details for the United States. The NHS (February 2025) describes it more broadly as long-lasting pain after shingles, lists the UK treatment steps and states UK vaccine eligibility. Neither country’s vaccination schedule should be assumed to apply elsewhere.

The NHS says recovery can take from a few months to over a year, and Mayo Clinic says pain can last months or even years, though many people improve over time. Neither source promises a fixed recovery date or describes the condition as permanent. MediBilbao Salud does not treat postherpetic neuralgia; your GP, a neurologist or a pain clinic are the right services.

10Summary

In summary

Postherpetic neuralgia is nerve pain that persists where shingles appeared, with burning or aching pain, sensitivity to touch or temperature, itching or numbness. It is more common after age 60 and with severe shingles or a weakened immune system. It often improves gradually. Treatment includes painkillers, nerve pain medicines and local anesthetic plasters, adjusted with regular check-ups.

At each review, a simple table helps: for each treatment, note the benefit in daily activities, any side effects and the date of the next check. Early shingles treatment and vaccination reduce the risk. See a doctor urgently for shingles near the eye or with vision changes.