Viral herpes is mainly due to viral infection, due to the strong contagiousness of the virus or the body’s immunity is low, easy to infect herpes virus, in clinical including herpes simplex and herpes zoster, the symptoms of the two are slightly different, but the cause of the disease are viral infection. The actual symptoms are: 1. Herpes simplex: It occurs at the junction of skin and mucous membranes and appears as an erythematous spot around the mouth and nose. There are green bean-sized blisters on the erythematous spots, the herpes is light, the wall of the blister is easily broken, there can be pain and itching, or there can be no symptoms. It usually lasts 1-2 weeks and then can heal itself, but it is easy to recur; 2. Herpes zoster: Herpes zoster is usually seen as a papule and blistering papule on the waist. The manifestation is erythema with clustered blisters on the erythema, which can appear as larger blisters or bloody blisters, with more pronounced pain and a longer duration of the disease. The duration varies depending on the population and the immunity. The disease is self-limiting, about 2-3 weeks, and rarely recurs. Second, the cause: 1, the virus is highly contagious: herpes simplex is due to infection with human herpes simplex virus, herpes zoster is due to infection with varicella-zoster virus, both viruses are more contagious, when the human body comes into contact with the virus, it will be infected with viral herpes; 2, the body’s immunity is low: a variety of bad habits, such as regular excessive late night, smoking and drinking, so that the body’s immunity The body is unable to block the invasion of the virus and therefore gets the disease. If the patient has been infected with the virus, and temporarily did not develop, when the body resistance decreases, the virus in the body will become active and reproduce in large numbers, the body will appear viral herpes.