With the arrival of summer, many patients are troubled by the intolerable itch in the perineum. The “private place” is often too shy to seek medical attention, so they have to buy their own medicine or scratch, scalding, often counterproductive, the worse. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. The main clinical features are erythema, papules, blisters, oozing, vesicles, itching and skin keratinization. It is called perianal sore in Chinese medicine. It is said in The Golden Guide to Medicine that “this disease is initially like corn, but it is itchy and painful, broken and flowing yellow water, soaked into pieces, made by dampness and heat in the spleen and stomach, and outside by wind and evil.” This is both a graphic description of the disease and an indication of Chinese medicine’s understanding of its etiology and pathogenesis. Anal eczema is mostly related to endocrine dysfunction, mental tension and overexertion. It occurs in the summer, and is mostly related to sweating and sweltering in the buttocks and impermeable clothing. In addition, the stimulation of secretions produced by hemorrhoids, anal fissures and anal fistulas are also triggering factors for perianal eczema. Patients with anal eczema complain that the strange itch is difficult to talk about, often with paroxysmal attacks that intensify at night. The rupture of the blisters after scratching causes anal dampness, underwear contamination, or even skin erosion. The doctor can find thickened, oozing, cracked skin at the anal edge and some moss-like changes. As perianal eczema aggravates at night, this often causes a series of systemic symptoms such as insomnia, irritability and gastrointestinal dysfunction, which directly affect our lives. Western medicine often takes an anti-allergic approach, and ointments mostly contain hormonal ingredients. The author prefers patients to consult Chinese medicine. The reason is that Chinese medicine is more specific to the individual, and Chinese medicine is green and safe with fewer side effects. The Chinese medicine believes that perianal eczema is mostly due to spleen deficiency and dampness, which is what the people call heavy dampness. Some patients also see blood deficiency and wind dryness. Therefore, the evidence-based treatment is often divided into: 1. The treatment is to clear heat and dampness, dispel wind and relieve itching. The treatment is to clear heat and dampness, dispel wind and relieve itching. Chinese medicine says that “blood deficiency generates wind, and wind gathering causes itching”. The itching is mostly thought to be related to blood deficiency. Treatment is to nourish blood and moisten dryness, dispel wind and relieve itching. Add and reduce the dosage of Dissipating Wind San. The soup is divided into morning and evening after meals and taken with warmth. In addition to internal use, external washing with Chinese herbs is also a feature of Chinese medicine in the treatment of damp sores. The author often with Atractylodes macrocephala, bitter ginseng, Tu Fu Ling, Tribulus terrestris and other drugs in a certain proportion, the patient is asked to sit in the bath for about ten minutes after the liquid is close to body temperature. With internal consumption, the effect is obvious. In addition, should also avoid local irritation, do not scratch, should not be scalded with hot water or hard friction, not to use iodine, alcohol and other irritating drugs. Allergic foods are prohibited during treatment, such as seafood, mutton, chili peppers, leeks, and even more so, alcohol should not be consumed. For patients with hemorrhoids, anal fissures, anal fistulas and other diseases and both perianal eczema, should also be timely treatment of hemorrhoid fistula. The actual food therapy can be chosen to cool the bitter melon, lotus root, lotus leaf, adzuki beans and so on. May friends say goodbye to the summer itch as soon as possible.