The following therapeutic measures can be taken separately for red and swollen lips: 1. When chronic labyrinthitis occurs and the mucous membrane of the lip is chapped and scales are formed, a wet compress of escharacridine or boric acid solution can be applied, and erythromycin ointment can be applied to promote healing after the scabs fall off. 2. When allergic stomatitis is caused by applying lip balm or taking medication, the allergy-causing medication should be stopped immediately, and oral antihistamines or intravenous calcium gluconate should be administered. 3. X-rays show that the tooth When acute periapical inflammation occurs, open pulp drainage can be performed to widen the channel from the apical foramen to the root canal mouth to promote the discharge of inflammatory secretions and complete root canal treatment after the swelling subsides. 4.When mucous cysts are formed on the inner side of the lip, the cysts can be removed directly under local anesthesia.