The disease is caused by the varicella-zoster virus. The first infection is chickenpox, which is usually more common in children. The virus will not be eliminated after cure, but lurks in the nerve roots. When the immunity is weakened, the virus is activated again, which is the disease. Generally, lesions appear in the nerve roots. Innervated skin area. Generally, the pain of the elderly is more severe and lasts longer than that of the young. For pain relief, you can use general analgesics such as painkillers, ibuprofen, etc. The diet should be light and it is best to avoid meat! hot! pungent! fishy. Pay attention to rest! Avoid exertion! Treatment: 1. Neurotrophic drugs, such as B1, B12, etc., which can be taken orally and intramuscularly injected. 2. Antiviral drugs: such as acyclovir, ribavirin, etc., taken orally, intravenously, or externally. 3. To improve immunity. Drugs: intramuscular injection such as polymyocytosis, interferon, transfer factor, etc. 4. Traditional Chinese medicine: such as isatis root, etc. to clear away heat and detoxify. 5. External application: such as sulfur calamine lotion, gentian violet liquid, etc., applied externally to dry the affected area to accelerate recovery. ! Note: The course of this disease is 2-3 weeks, and there is a certain degree of self-healing. If the herpes has not ruptured and there is no infection, antibiotics are not needed. The virus is contagious, so keep away from children who have not had chickenpox! When this disease occurs on the face, you need to be alert to viral encephalitis, viral keratitis, etc. Wish you a speedy recovery!