Herpes Zoster (Shingles)

Herpes Zoster, commonly known as shingles, is a reactivation of the varicella-zoster virus—the same virus that causes chickenpox. After an initial infection, the virus remains dormant in nerve tissues and can reactivate later in life, often due to aging or a weakened immune system. Shingles presents as a painful, localized skin rash with blisters, usually on one side of the body. While it can be uncomfortable, antiviral treatments can help reduce severity and duration. Vaccination is available to help prevent shingles or lessen its impact, especially in older adults.