After the treatment of allergic purpura has been improved, if we do not pay attention to the regulation and care in daily life, the disease is prone to recurrence. What should we pay attention to in order to prevent the disease from recurring? First of all, the most important one is to prevent infection. Such as tonsillitis, cold, rubella, chicken pox, etc. caused by bacteria, viruses, etc., diarrhea and other gastrointestinal infections. For patients with allergic purpura belonging to kidney type, gastrointestinal type and joint type, prevention of infection is especially important. Repeated external infections or the presence of chronic infectious lesions are important reasons for the occurrence, development, aggravation and recurrence of this disease. In addition, certain parasitic infections can also trigger the disease. Strictly abstain from eating, smoking and alcohol. If there is a known allergy to a certain dietary substance, it should be prohibited. Even if no obvious allergens are found, consumption of fish, shrimp, crab shells, mutton, dog meat, barbecue, fried and greasy, onion, ginger, garlic and pepper, leek and fennel and other pungent and dry hair, chilled cold drinks, food with many additives should be prohibited because these foods can damage the spleen and stomach, breed damp heat, lead to disharmony of the camp health, blood heat delusion, increase the burden of the gastrointestinal tract, make the rebleeding of capillaries, make purpura repeated or aggravated. If the kidney function is impaired and the urine protein is positive, you also need to pay attention to reduce the intake of vegetable protein, such as soybean milk, etc. In short, you should eat a light diet and do not eat too much. Be careful with your medication. Some drugs such as penicillin, cephalosporins, antipyretic and analgesic can also cause allergic purpura, so they must be used under the guidance of a doctor. If you have a cold, it is recommended that you prefer Chinese medicine. Get rid of allergens. Those who are allergic to pollen, dust, cold, etc. should stay away from allergens and take good protection. In addition, overexertion, strenuous exercise, sleeping late and staying up late, impatience and irritability. Intense changes in emotion are all detrimental to the recovery and healing consolidation of allergic purpura.