Eczema is a common disease in dermatology, which is an inflammation of the superficial dermis and epidermis caused by a variety of internal and external factors. Clinically, the acute phase of the lesions is dominated by papules with a tendency to exude, while the chronic phase is dominated by mossy changes, and the condition is prone to recurrence. According to Chinese medicine, the disease is characterized by symmetrical distribution of lesions, polymorphic damage, intense itching, tendency to moisten, recurrent attacks, and tendency to become chronic. The name of the disease differs according to the location of the disease, for example, if the disease occurs in the ear, it is called whirling ear sore; if it occurs in the elbow and knee bend, it is called four-bend wind; if it occurs in the scrotum, it is called renal sac wind; if it occurs in the umbilicus, it is called umbilical sore. Etiology Generally speaking, eczema is closely related to damage to the spleen and stomach and abnormal transportation and transformation. In acute cases, damp-heat is the main cause; in subacute cases, it is mostly related to spleen deficiency and dampness; in chronic cases, the disease consumes yin and blood for a long time, resulting in blood deficiency and wind dryness, and even skin nail mistakes. Therefore, Chinese medicine often classifies damp-heat skin, damp-heat infiltration, spleen deficiency and dampness, and blood deficiency and wind dryness, and often uses herbs to clear heat and dampness, relieve itching, and nourish blood and moisten the skin. Although there are many discussions on the etiology and pathogenesis of this disease, the word “damp” is inseparable. In addition, he often combined with the four types of Chinese herbal medicines to treat the eczema. In addition, Ai also often combined with Sijunzi Tang with addition and reduction to harmonize the spleen and stomach and restore the spleen and stomach’s function of transportation and transformation, which is actually the solution to the root of the problem. External treatment In the acute stage, if the exudation is obvious, you can use 10% cypress solution or decoction of Amaranthus, wild chrysanthemum, dandelion, etc. to apply cold and wet compresses; in the chronic stage, you can apply ointment, skin needle and Chinese herbal medicine to promote the healing of skin lesions. If the local dryness, cracking, scaling obvious, need to strengthen the local moisturizing, often with half the effort, especially some patients, every in the autumn and winter attacks aggravated, local moisturizing is vital. The problem of avoiding the mouth: On this issue, it still varies from person to person. As mentioned above, eczema is caused by a variety of internal and external factors, some related to the season, some related to diet. If the allergen test has clear food allergy factors, or the condition is aggravated after consuming certain foods in daily life (such as kelp, seafood, hot pot), it should be avoided. You should learn to observe various triggering aggravating factors in your own life. 2, the problem of red beans and barley: In daily life, many patients remove dampness by taking red beans and barley. These two substances are both food and medicine, Chinese medicine believes that they do have the effect of clearing heat and dampness, but only for patients with damp-heat constitution, and can not be taken for a long time. They should not be taken if patients with other constitutions such as spleen deficiency and dampness. Patients are advised not to consume them casually by themselves and must consult a doctor in advance at an outpatient clinic. 3, the problem of allergies: Some patients are indeed related to allergies, in addition to their own observation in daily life summary, but also through in vitro allergen IgE test, patch test, etc. to clarify. Once found, you should try to avoid re-exposure to prevent induced aggravation.