Shingles (Herpes Zoster)
Shingles is a rash caused by the reactivation of the chickenpox virus (also known as the varicella zoster virus or VZV). Classically, the rash affects only one side of the body, within a single stripe or band known as a dermatome. There may be a prodrome consisting of pain, itching, or tingling localized to the area before the rash appears. This is followed by the development of a painful rash and blisters.