Postherpetic neuralgia is pain that lasts for more than a month after a shingles infection occurred. The pain may last for months or years.
Postherpetic neuralgia occurs when the nerves have been damaged after an outbreak of shingles. Shingles is caused by the varicella zoster virus, the same virus that causes chickenpox.
Postherpetic neuralgia is more likely to occur in people over age 60.
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