A child’s allergic bumps from eating is clinically called urticaria, a kind of allergic reaction that occurs after a child eats allergic food. Specific treatment is as follows: First, if the symptoms are mild, you can take vitamin C orally alone and drink more water, and the symptoms will disappear, so don’t eat allergic food again for a short time. Second, heavy symptoms need oral desensitizing drugs, such as loratadine, oral desensitizing drugs, generally an hour after the hives can disappear. Third, oral desensitizing drugs, you can take calcium orally for about fifteen days, to help prevent the re-occurrence of allergies in the short term. Fourth, it is advisable to have a light diet after allergy and avoid contact with allergic foods again. Diet of fish, shrimp, eggs, beef and mutton are all foods that can easily induce allergy, including mango or durian. Parents must pay attention to the feeding of relevant allergy-prone foods in the short term to avoid another attack.