The foods to be avoided in seborrheic dermatitis include spicy and stimulating foods, hair products, nuts and fruits, as follows: 1. Spicy and stimulating foods: such as raw onions, raw garlic, strong tea, coffee, chili peppers, mustard and alcoholic beverages. 2. Hair products: including beef and mutton, chicken, duck, goose, dog, sea cucumber, shrimp, crab, scallops and other seafood. 3. Nuts: including walnuts, hazelnuts, pine nuts, peanuts, sunflower seeds, etc. 4. 4, fruits: mangoes, yellow peaches, nectarines, strawberries, dragon fruit and so on. In addition to the above avoidance of food, you also need to cooperate with anti-allergy treatment.