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Herpes zoster and postherpetic neuralgia ��PHN�� are common causes of neuropathic pain, their treatment and prevention are usually troublesome. Antiviral drugs have been consistently found to effectively reduce the severity and duration of herpes zoster. However, there is no convincing evidence that antiviral agents could reduce the risk of PHN. It is reported that the acute pain of herpes zoster can be relieved by corticosteroids, tricyclic antidepressants, anticonvulsants and analgesics, and PHN can be alleviated by anticonvulsants, narcotic analgesics, tricyclic antidepressants, lidocaine patch 5% and capsaicin ointment. Prophylactic vaccination with herpes zoster vaccine may have a beneficial effect on the incidence of herpes zoster and PHN.

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