Symptoms such as pain around the lips after eating pineapple: this is due to an allergic change caused by an enzyme contained in the pineapple, which is a sensitizing substance for the organism and is not metabolized or digested. Clinical diagnosis is dermatitis. Antiallergic, anti-inflammatory and other symptomatic treatment is needed, the specific program is as follows: oral loratadine tablets, prednisone acetate tablets, vitamin C tablets. The affected area using pure water wet cold compresses, coated with Eloxon cream, but the drug needs to be strictly in accordance with the doctor’s instructions.