Eczema is an inflammatory skin reaction with a pronounced tendency to exude caused by a variety of internal and external factors, with infiltration and hypertrophy in the chronic phase, intense itching, easy recurrence, and influenced by diet and mood. The face, both eyes, external ear canal, and nasal cavity are the most frequent sites, which seriously affects the quality of life of patients. In the process of clinical application of Chinese medicine for eczema, I will guide patients to control their diet and not to eat the following types of food: a. edible mushrooms: mainly mushrooms, shiitake mushrooms, easy to induce or aggravate skin symptoms. The first of these is the “allergic” food, which contains histamine, 5-hydroxytryptamine and other allergic mediators that can cause an allergic reaction and aggravate the inflammatory skin reaction. Third, vegetables: spicy food mainly pepper, garlic, chives, cilantro and other stimulating products. Fourth, livestock: mainly dog meat, mutton, rooster, this kind of food initiative and sex rise floating, easy to cause eczema recurrence.