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Shingles, also known as herpes zoster, is a painful viral condition caused by reactivation of the varicella-zoster virus, the same virus that causes chickenpox. After a person recovers from chickenpox, the virus does not disappear completely. Instead, it remains dormant in nerve tissue and can reactivate years later, often during periods of aging, stress, or weakened immunity. The result is a blistering rash that usually appears on one side of the body or face, often accompanied by burning, itch...
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