Snake sores, also known as shingles, are caused primarily by varicella-zoster virus infection. Herpes zoster is a skin damage caused by the activation of the varicella-zoster virus that is latent in the human body. The initial infection of the human body with this virus can manifest as chickenpox or hidden infection, and when the human body’s immune system declines, the latent virus can be activated and replicated, which causes the appearance of herpes zoster. Among them, people of advanced age, especially those over 50 years old, or patients with underlying systemic diseases such as diabetes, kidney disease, AIDS, etc., patients taking glucocorticoid drugs for a long period of time, or patients who have recently suffered from mental trauma and stress are more prone to the symptoms of herpes zoster. Once herpes zoster appears, you need to go to the hospital in time, the general prognosis is good, and the healing can be lifelong immunity to the effect.