Abstract: Postherpetic neuralgia (PHN ) is one of the most frequent complications of herpes zoster, with the feature of intractable chronic pain. The higher incidence of PHN has been found in elder people and the people with low immunity. Because its pathogenesy is not clear, the clinical treatment appears to be very difficult, and all kinds of the treatments just relieve pain. Neurotropin combined with nerve block is one of the new therapies recently, which is deserved to be used in clinic and to be generalized.

Key words: herpes zoster, neuralgia, nerve block, neurotropin, review