There are many causes of allergic face swelling in children, so it is necessary to consult a doctor immediately to identify the cause and then avoid allergens, medication, and so on. 1. Avoidance of allergens: It is necessary to clarify the cause of the child’s allergy, whether there are clear allergens, such as animal hair, pollen, etc. If there are known clear allergens, it is necessary to avoid the allergens, and at the same time to do indoor ventilation, change clothes and so on. 2. Medication: oral medication and topical medication. (1) Oral drugs: Oral anti-allergy drugs such as cetirizine and loratadine can be taken as prescribed by the doctor. Can also be taken under the guidance of the doctor oral hormone drugs, such as prednisone acetate tablets. (2) Topical medication: Pimecrolimus ointment, tacrolimus ointment and other topical medications can be used as prescribed by the doctor, meanwhile, keep clean and dry to avoid secondary skin infection after scratching. If the above situation occurs, it is recommended to go to the hospital in time, and the medication should be used according to the doctor’s prescription.