Herpes zoster is a viral infection that usually occurs only once in a lifetime. However, there are very few exceptions, mainly people with poor resistance and low immunity, such as people with cachexia, malignant diseases and immunodeficiency, such as people with AIDS, may have recurrence of shingles, or even multiple infections. After the appearance of shingles, it is important to treat it early and regularly, mainly with antiviral, nerve-nourishing and pain-relieving drugs. The most worrying thing about this disease is the appearance of posterior neuralgia, because the virus invades the epidermal nerves, and if it is not treated formally or in the older age group, it is easy to leave sequelae, so it should be treated early.