Eczema is an inflammatory skin reaction with a pronounced tendency to exude. It is a delayed metabolic reaction caused by complex internal and external factors. Clinically, it is characterized by symmetrical distribution of red papules and vesicles above the skin, polymorphic damage, intense itching, moistness, and recurrent flare-ups, which can easily turn chronic if not treated promptly or vigorously. According to the course of the disease, it can be divided into three categories: acute, subacute, and chronic. Acute is mainly papular rash, with a tendency to exude; chronic is mainly mossy, prone to recurrent attacks. This disease belongs to the category of “dipping sores” and “blood wind sores” in Chinese medicine. For the treatment of eczema, the authors believe that the main root of eczema lies in the body’s blood toxicity (internal fire), combined with the attack of external wind (external harmful substances), resulting in an exudative skin inflammation. Therefore, in order to completely cure eczema, it is necessary to remove the wind and activate the blood on the basis of clearing the internal fire to be effective. The treatment of eczema should be understood: 1. It is not ok to have topical medication. The actual topical medications are some anti-itch agents, most of which contain hormones, which only stop the itching and inflammation on the skin surface, causing the root cause of eczema to remain untouched. 2, oral anti-allergy drugs (like paracetamol, etc.) is only a drug to reduce allergic reactions, nothing to solve the role of “blood poison”. 3, eczema skin inflammation in addition to the surface of the lesions have bacterial infection, the substance of inflammation should be a sterile inflammation. The best medicine to solve this sterile inflammation is the Chinese herbal medicine to clear heat and detoxify and cool the blood. 4, it is especially important to find ways to find the cause of eczema. This is an important part of preventing recurrence after cure. The actual fact is that you can find a lot of people who have been in the business for many years.