Patients with allergic purpura need to avoid spicy and stimulating foods, and some patients also need to avoid animal protein and other foods. 1. Usually, patients with purpura need to pay attention to a light diet, avoiding spicy and stimulating foods such as chili peppers, onions, garlic and so on. 2. For the skin purpura symptoms subside within 2 months, but also need to avoid eating fish, shrimp, squid, crab and other seafood and eggs, milk and other animal protein food may cause sensitization. 3. Patients can usually eat buckwheat, oats, millet and other low-protein foods, as well as tomatoes, carrots, beef, chicken, vegetables, leeks, spinach and other vitamin-rich foods. If the patient’s lesion involves the digestive system, it is also necessary to choose to use eggdrop soup, noodle soup, egg custard and other semi-liquid food. It is recommended that patients with purpura follow strictly the doctor’s instructions to rationalize their diet, pay attention to the relevant taboos, and do a good job of their own care.