Post-abortion toothache, need to identify the cause of toothache and then treatment, such as dental caries, pay attention to clean teeth, filling treatment; pulp infection, acute drainage, root canal treatment; non-odontogenic toothache, need to treat the cause. 1. Dental caries: usually carefully brush the teeth, especially carefully clean the interstices, can use the fossa closed. If the caries is serious, amalgam filling is needed, which can relieve the pain after treatment. 2. Pulp infection: acute stage need to do pulp cavity drainage, after root canal treatment, pulp cavity clean and then do filling. 3. Gum or maxillofacial infection: in the root canal treatment or periodontal treatment at the same time, also need antibacterial medication, such as amoxicillin capsules, metronidazole tablets, etc., the infection is serious also need to do incision and drainage. In addition, non-odontogenic dental pain, such as acute myocardial infarction, trigeminal neuralgia, etc., need to be timely to the hospital for treatment. Drugs should be used under the guidance of a physician.