There are various causes for patients to develop swollen and painful gums in the posterior socket, and treatment should be initiated according to the specific cause. If the patient is in the eruption stage of wisdom teeth, it can be initially judged as a typical symptom of peri-coronitis of wisdom teeth, which requires timely medical treatment so as to relieve the swollen and painful gums. This can be done by taking oral amoxicillin, metronidazole and other antibiotic drugs to eliminate the infection, and if necessary, pericoronal gingival flap removal, extraction and other eradication treatments; 2, gum inflammation: gingivitis, periodontitis, plaque and other common posterior teeth, patients often have bleeding gums, swelling and pain, redness, fever and a series of performance. It is recommended to seek medical attention in time, and can be treated with topical chlorhexidine solution, hydrogen peroxide solution, etc. If necessary, periodontal scaling is used under the guidance of a doctor, which can play a role in removing plaque and tartar and thus alleviating the inflammatory reaction; 3, odontogenic diseases: if patients have periapical, pulpitis, caries and other odontogenic diseases, swelling and pain, numbness and woodiness of the posterior groove teeth can occur, and the discomfort symptoms when biting will The symptoms of discomfort will be aggravated when biting. Clinically, amoxicillin, ampicillin and other penicillin drugs are mostly used for antibacterial and anti-inflammatory treatment, as well as tooth extraction, root canal treatment and other surgical treatment; 4, alveolar bone swelling: if the patient has alveolar cysts and tumors in the posterior groove, it can cause swelling, pain, numbness and other reactions of the affected gums. If the symptoms of discomfort recur, you can seek medical advice to choose surgical methods to scrape the swelling.