When swelling of the lower lip occurs, the treatment plan should be selected according to the specific cause of the swelling. If it is simply due to lip infection, or skin mucous membrane infection, anti-infection treatment should be carried out in this case, by taking cephalosporin antibiotics or penicillin drugs to achieve inhibition of bacteria, so that the swollen lip infection can gradually achieve normalization. If the lip skin mucous membrane edema is caused by the factor of allergy. In this case, first of all, we should avoid contact with allergens, avoid eating fish, shrimp or protein foods, and also assist in anti-desensitizing drugs, such as paracetamol, vitamin C and cetirizine, which can be applied to minimize the occurrence of edema in the tissues and can play a good therapeutic effect on the swelling of the lower lip. If it is caused by trauma, you can start with a cool compress locally, and take hot ointment wraps after 2 days, and apply anti-inflammatory ointment topically to achieve the purpose of reducing inflammation and swelling.