Rotten root abscess must be medical treatment for abscess incision and drainage and anti-inflammatory treatment, to be eliminated after the inflammation of the rotten root extraction can be. 1. Root abscess is mainly caused by acute attack of chronic apical inflammation, and its main symptoms include severe toothache, periapical mucosal abscess, and in severe cases, even accompanied by generalized fever and chills. 2. Root abscess cannot be extracted immediately, and must be carried out after the inflammation is controlled and stabilized; it is recommended to firstly carry out incision and drainage of abscess to discharge purulent secretion in time to relieve the swelling and pain, and take or inject antibiotics intravenously under the guidance of doctor (such as amoxicillin, metronidazole, etc.) to control the inflammation effectively; and carry out the extraction of the root of the tooth after the swelling has subsided. It is recommended that timely medical examination and treatment, the use of drugs need to follow the doctor’s instructions.