Herpes Zoster (Shingles): Definition, Diagnosis & Management (In English & Hindi)    English Version Definition Herpes Zoster, commonly known as shingles, is a viral infection caused by the reactivation of the Varicella-Zoster Virus (VZV) – the same virus that causes chickenpox. After a person recovers from chickenpox, the virus remains dormant in nerve cells and may reactivate years later, leading to shingles. Causes Reactivation of dormant varicella-zoster virus. Triggered by stress, aging, immunosuppression, chronic illness, or certain medications. Symptoms & Diagnosis Pain, burning, or tingling sensation in a particular area of the body. Followed by a band-like rash of fluid-filled blisters, usually on one side of the body. Rash may affect face, chest, abdomen, or back. Clinical diagnosis is usually sufficient, but PCR or viral culture may confirm in uncertain cases. Management & Treatment Antiviral medications (Acyclovir, Valacyclovir, Famciclovir) –...