Most of the general facial swelling caused by swollen left gums is due to inflammation of the periodontal and pulp spreading to the surrounding area. It can be treated by incision and drainage and medication. 1. Incision and drainage: local swelling is obvious, there is a sense of fluctuation, incision and drainage is needed to drain the pus, and then change the medicine daily to control inflammation and reduce pain. 2. Oral anti-inflammatory and analgesic drugs: most of the facial swelling caused by toothache is due to gingivitis, periodontal abscess and other acute infections. Initial oral metronidazole, amoxicillin and other anti-inflammatory drugs as prescribed by the doctor for relief, can also take ibuprofen capsules with the treatment, to play an anti-inflammatory and analgesic effect. In severe cases, intravenous antibiotics such as metronidazole and tinidazole can be administered as prescribed by the doctor. If the left side of the gums are swollen and painful to the left side of the face are swollen, timely to the hospital, to identify the cause of the disease, under the guidance of the doctor’s medication as well as targeted treatment.