Abstract:Herpes zoster is a common disease in clinical practice, primarily affecting middle-aged and immunocompromised individuals. Common complications include postherpetic neuralgia, postherpetic itch, and ulcerative keratitis. Postherpetic itch has a high incidence in clinical settings but receives less attention compared to postherpetic neuralgia. Currently, there is still a lack of in-depth research on the pathogenesis and treatment methods for postherpetic itch. This article provides a comprehensive review of the epidemiology, pathogenesis, and treatment methods for postherpetic itch both domestically and internationally, aiming to provide some reference for diagnosis and treatment in clinical work.