For dermatitis eczema patients can not eat or should not eat food, including the following: 1, food made by fermentation process, including tofu milk or sauerkraut, etc. 2, can not drink drinks containing alcohol, such as beer, white wine, etc. 3, can not eat spicy and irritating food, including raw onion, raw garlic, strong tea, coffee, etc. 4, can not eat allogeneic protein-rich food, including beef and mutton, seafood, eggs, milk 5, can not eat fruits that can easily cause allergies, including mango, dragon fruit, kiwi, etc. 6, can not eat nutty foods, including figs, pine nuts, peanuts, etc.