Red girdle is the common term for the red rash on the lower back caused by herpes zoster virus infection with secondary associated changes. Treatment mainly includes antiviral therapy and symptomatic therapy. 1. Antiviral treatment: If the rash and pain symptoms are not obvious, anti-viral acyclovir cream can be used and applied to the affected area. If the local symptoms are moderate and the pain is obvious, intravenous acyclovir injection and supplemental topical acyclovir cream are needed. 2. Symptomatic treatment: mainly pain relief and nutritional nerve treatment, oral ibuprofen, lophenytoin, vitamin B1, vitamin B12, adenosylcobalamin and other drugs as prescribed by the doctor, if the patient’s immune system is extremely low, can be appropriately transfused gammaglobulin inotropic and fresh plasma, which can improve immunity and shorten the course of the disease. Herpes zoster is a self-limiting disease, the treatment cycle is 2~3 weeks, and it is easy to recur when the immunity is low, so it is recommended to consult a doctor in time to avoid delaying the condition.