Herpes zoster is a disease caused by varicella-zoster virus infection, which can be diagnosed by medical history, typical manifestations and auxiliary examinations. 1. Medical history: Most patients with herpes zoster have a history of chickenpox. 2. Typical manifestations: Herpes zoster has typical skin lesions, and can often be diagnosed accordingly. Typical performance is unilateral along the peripheral nerve distribution of clusters of blistering damage, and accompanied by neuralgia. Fever, malaise and lack of appetite may be some of the systemic symptoms before the onset of the disease. 3. auxiliary examination: herpes bottom scraping material smear see multinucleated giant cells and nuclear inclusion bodies can help the diagnosis of herpes zoster. If necessary, viral DNA test and viral culture can also be performed to confirm the diagnosis. If you have any of the above discomforts, it is recommended that you go to the dermatology department of the hospital in a timely manner to improve the examination and treatment.