Postherpetic Neuralgia: Causes and Treatment

Postherpetic neuralgia (PHN) is the same virus that causes chickenpox. During the initial infection of chickenpox, the virus remains in the person's body, lying dormant inside nerve cells. Years later, illness, age, stress, medications, or decreased immune system function may reactivate the virus and cause a shingles outbreak. At times, there is no apparent reason for the outbreak.
Source: Disabled World - Category: Disability Tags: Pain Source Type: news