Herpes zoster is called “snake sore”, “snake sore”, “spider sore”, “tangled waist” and “herpes zoster” in Chinese medicine. “The disease is thought to be caused by the feeling of wind and fire or dampness. It is thought to be caused by feeling the evil of wind and fire or dampness, and is related to factors such as disorders of emotion, diet and living. If the emotions are not in order, liver qi becomes stagnant, depression turns into heat; if the diet is not in order, the spleen loses its health and dampness stops inside; if the living and drinking are not careful, the function of the external guard becomes dysfunctional, so that the poison of wind and fire and phlegm and dampness is depressed in the liver and gallbladder. The liver fire, spleen and dampness are depressed inside, the poisonous evil invades outside, and the meridians are stagnant between the skin couples and the disease develops. Western medicine believes that it is caused by the varicella-zoster virus, which can cause two different disease syndromes after infection: 1, chickenpox in susceptible children after infection; 2, adults, especially the elderly, after infection, in the case of low immunity, mainly manifested as herpes zoster. The virus enters the bloodstream through the mucous membrane of the respiratory tract and causes viremia, which is the only host of varicella-zoster virus. Herpes zoster develops, at which time the affected nerve undergoes inflammatory necrosis and the peripheral nerve is damaged, and more than 90% of patients experience sensory abnormalities, such as abnormal pain, pain to touch, sensory hypersensitivity, and abnormal sensation. In terms of treatment, Western medicine mainly focuses on antiviral, antidepressant, anti-inflammatory and analgesic treatment, while the post-herpetic pain caused by the onset of shingles has been a world problem until now. In Chinese medicine, according to the characteristics of the onset of herpes zoster, at the beginning of the disease, the patient may have a headache, physical discomfort and other superficial evidence, and then the patient feels local skin abnormalities, such as itching, tingling sensation or severe pain. This is the best time for the patient to consult the doctor. Using Chinese herbal medicine to relieve the rash, clear heat and detoxify, so that the evil qi depressed in the body can be fully penetrated, and avoid the remaining evil to stay in the body. In this process, it is necessary to eliminate the internal causes according to the evidence, such as diarrhea of liver fire, strengthening the spleen, resolving dampness, eliminating blood stasis and clearing the ligaments.