After eating pineapple hives should immediately stop eating pineapple, and then take general treatment, medication and other ways. 1. Immediately stop eating pineapple: hives after eating pineapple, mainly due to the human body is allergic to pineapple and its components, so hives, you need to immediately stop eating pineapple, to avoid allergens stimulation. 2. General treatment: hives during the disease, should be away from allergens, avoid greasy, spicy and stimulating food, diet needs to be light, eat more vitamin-rich foods, appropriate exercise, enhance physical fitness. 3. medication: hives after eating pineapple belongs to the phenomenon of allergy, need to follow the doctor’s instructions to take anti-allergy drugs, such as loratadine, cetirizine and so on. If the symptoms are serious, you need to intramuscular injection of Benadryl or intravenous infusion of vitamin C, dexamethasone and other drugs. After eating pineapple hives phenomenon, the patient should go to the hospital to take treatment in a timely manner, the drug needs to be used in accordance with the doctor’s instructions, not to be used indiscriminately, so as not to lead to adverse consequences.