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 allergic factors. In this case, the first thing is to get rid of the allergen, avoid eating fish, shrimp or protein-based food, and at the same time 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 very good therapeutic effect on the swelling of the lower lip. If it is caused by trauma, hot compresses can be applied locally and anti-inflammatory ointment can be used topically to achieve the purpose of reducing inflammation and swelling.