The majority of skin diseases are itchy and some are painful, but the only one that is significant is herpes zoster, especially in elderly patients. Herpes zoster is the scientific name of the disease and is caused by varicella-zoster virus infection. It is characterized by clustered blisters distributed in a band along the peripheral nerves on one side of the body, accompanied by significant neuralgia and local lymph node enlargement, and rarely recurs after healing. The disease mostly affects the intercostal nerve, cervical plexus nerve, trigeminal nerve, lumbosacral nerve, etc. It can also involve the third and fourth cerebral nerves, causing central nerve involvement such as the brainstem and symptoms such as headache, vomiting and convulsions. Significant neuralgia is a characteristic manifestation of herpes zoster, which generally often appears before or at the same time as the rash, and the older the patient, the more intense the pain. Most elderly patients often have intractable neuralgia due to post-inflammatory fibrosis of the ganglia that can last for months to years, and in severe cases, prolonged nerve paralysis. The duration of the disease is usually 2-3 weeks, and about 3-4 weeks in the elderly, with very few recurrences after healing. Severe cases, especially those with a generalized rash, often suggest immune deficiency or potentially malignant finishing and should be detected by early examination. Due to the different immune status of the body and the different invading nerves, special types of herpes zoster can occur such as herpes tongues, herpes hemorrhagicus, herpes gangrenosus, herpes panniculus, herpes zoster of the eye, herpes zoster of the ear, and herpes zoster of the viscera. According to Chinese medicine, the disease is mostly caused by internal injury of emotion, liver depression and stagnation of qi, which turns into fire and fire toxicity of liver, which overflows the skin; or poor diet, loss of spleen health, internal dampness and heat, which overflows the skin; or infection of poisonous evil, which is caused by dampness, heat and fire toxicity in the skin. In old and deficient people, the pain is often due to blood deficiency, liver prosperity, damp-heat toxicity, Qi and blood stagnation, or spleen and kidney Yang deficiency, Yang Qi deficiency, blood clotting without warming, resulting in severe pain, the course of the disease is difficult to heal. The treatment is mostly to clear heat and dampness, detoxify and relieve pain; or to strengthen the spleen and regulate dampness, detoxify and relieve pain; or to invigorate blood circulation and remove blood stasis, move Qi and relieve pain; or to tonify the spleen and benefit the kidney, warm the meridians and relieve pain. The prevention and regulation of this disease is very important, especially for the elderly. Generally speaking, we should pay attention to the following aspects: 1. Enhance physical fitness and improve the ability to resist diseases. The elderly should adhere to appropriate outdoor activities or participate in moderate sports activities to enhance physical fitness and improve the body’s ability to resist disease. 2.Prevent infection. Infection is one of the causes of this disease. Elderly patients should prevent infections from various diseases, especially in the spring and autumn, when it is warm and cold, add and remove clothes at the right time to avoid upper respiratory tract infections caused by cold. In addition, inflammation of the oral and nasal cavities should be actively given treatment. 3, prevent trauma. Trauma can easily reduce the body’s ability to resist disease, which can easily lead to the occurrence of this disease. Therefore, the elderly should pay attention to avoid trauma. 4.Avoid contact with toxic substances. To avoid contact with chemicals and toxic drugs, to prevent injury to the skin, affect the health of the body, reduce the body resistance. 5.Improve nutrition. The elderly should pay attention to the nutrition of the diet, eat more soy products, fish, eggs, lean meat and other protein-rich food and fresh vegetables and fruits to prevent the occurrence of various diseases directly or indirectly related to the disease.