Patients with redness and swelling of the mouth in general, based on the different causes of redness and swelling of the mouth, the clinical treatment can be different. First, if the patient inadvertently fell during strenuous activities, resulting in soft tissue contusion of the mouth, localized redness, swelling and pain. At this time, it is recommended to give ice local external application to reduce the local exudation, to avoid the patient’s mouth swelling progressive increase. After the local oozing stops, hot towels can be used to apply wet compresses. Oral pain, blood circulation and blood stasis pills and other drugs, can quickly relieve the symptoms of oral swelling. Second, if the patient due to eating seafood, mango and other easily allergic food allergic reaction in the body, manifested in the mouth of the red and swollen. At this time, patients need to take oral paracetamol, loratadine and other anti-allergy drugs to relieve the allergic reaction in the body, reduce the symptoms of redness and swelling of the mouth.