A member asked:

What triggers shingles?

A doctor has provided 1 answer
Dr. Deborah Josefson answered

Specializes in Internal Medicine

Decreased immunity: Shingles is a reappearance of chickenpox or varicella zoster virus. After the initial outbreak of chicken pox, the virus hides in the spinal cord in the dorsal root ganglion and may reappear later in life, when we are under high stress or lowered immunity. Long term corticosteroid use can increase the risk of zoster. Symptomsof impending rash include pain and paresthesias.

Answered 8/29/2014

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