Snakebite, clinically known as herpes zoster, is primarily a nerve injury caused by varicella-zoster virus infection. Generally, after the initial infection with the virus, it may appear as chickenpox or present as a latent infection. The virus is latent in the posterior root ganglion of the spinal cord or the sensory ganglion of the brain nerve, and when it encounters mental stress, exertion, emotional depression, and decreased immunity, such as malignancy, use of immunosuppressive drugs, viral infection or AIDS, the latent herpes zoster virus is activated and travels down the sensory nerve axon and then reaches the nerve This causes a herpes rash to appear on the skin of the corresponding segment, and at the same time causes pain in the area of the affected nerve distribution. Patients with snake sores should avoid straining, take rest, exercise appropriately, and keep the skin clean. At the same time, oral antiviral drugs, such as vaxilovir hydrochloride, and the nerve-nourishing drug mecobalamin, should be taken for treatment. In addition, in order to avoid infection, it is important to change clothes regularly. Patients with snake sores should also pay attention to a proper diet and supplement nutrition by eating more protein-rich foods such as soy products, fish, eggs, and lean meat, as well as fresh fruits and vegetables to supplement vitamins to promote recovery.