Postherpetic Neuralgia – Symptoms, Treatment & Clinical Trials

Postherpetic neuralgia (PHN) is a nerve pain condition (neuralgia) that may develop after an episode of herpes zoster (post-herpetic). Herpes zoster, commonly known as shingles, is caused by reactivation of the varicella zoster virus, the same virus that causes chickenpox (varicella) upon initial infection. Herpes zoster most commonly affects older adults. Approximately 1 in [...]