Post Herpetic Neuralgia
Description
Pain in an area of the body where a previous episode of shingles occurred. Shingles is a reactivation of the chicken pox virus later in life after the original chicken pox infection has resolved. In most people the pain of shingles goes away after a few weeks. In some patients the rash of shingles resolves but the pain persists and this is called post herpetic neuralgia. This complication of shingles is more common in those patients over 60. At times the pain can be severe.
Symptoms
Pain in an area of the shingles outbreak. The pain persists even after the rash resolves. Other symptoms include sensitivity to light touch, itching, numbness, and weakness. The pain can be described as burning and can be severe.
Tests
A history and physical exam will be done. No specific tests are usually needed to confirm the diagnosis.
Treatment
Treatment consists of lidociane patches, tricyclic antidepressants, steroids, antiviral medications, opiate pain medicines, and anti-seizure medications. A vaccine, Zoster vaccine live (Zostavax), exists which can prevent shingles outbreaks from occurring.
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