Herpes zoster is a viral disease presenting with vesicular eruptions that are usually preceded by pain and erythema. Herpes zoster can be seen in any dermatome of the body but most commonly appears in the thoracic region. Herpes zoster virus is typically transmitted from person to person through direct contact. The virus remains dormant in the dorsal ganglion of the affected individual throughout his or her lifetime. Herpes zoster reactivation commonly occurs in elderly people due to normal age-related decline in cell-mediated immunity. Postherpetic neuralgia is the most common complication and is defined as persistent pain or dysesthesia 1 month after resolution of the herpetic rash.