Viral herpes consists of two main categories, namely herpes simplex and herpes zoster, the onset of which is usually due to direct or indirect contact with the virus. Herpes virus can be spread in droplets, and the patient’s herpes fluid also contains a large amount of virus, and contact with the virus will be infected, the specific infection is as follows: 1. Herpes simplex: the initial infection is often spread through kissing or sharing utensils, the infection is caused by the virus, and recurrence is in pregnancy, long-term application of glucocorticoids, infection, or due to tumor growth and other circumstances resulting in a decrease in body resistance, the virus parasitized in the cells In the case of recurrence, the virus is activated and migrates along the nerves to the skin where the nerve endings are distributed, showing herpes recurrence caused by herpes simplex virus infection, which occurs in the corners of the mouth or at the junction of the skin and mucous membranes, mainly manifesting as clusters of blisters, usually self-limiting, and can heal itself in about a week; 2. Herpes zoster: an acute infectious skin disease caused by varicella-zoster virus infection, this virus has pro The virus has pro-neural and pro-skin characteristics, people who are not immune to this virus are susceptible to infection after contact with chickenpox patients. The virus enters the body through the respiratory mucosa and is transmitted through the bloodstream. The virus in the body can be latent in the neurons of the posterior roots of spinal nerves or brain ganglia for a long time, which can lead to re-activation, growth and reproduction of the virus latent in the body under triggering factors such as cold and fever, causing inflammation or necrosis of the invaded ganglia, resulting in neuralgia.