Toothache and gums with pus may be caused by apical periodontitis, can use painkillers to relieve pain, such as ibuprofen, etc., the use of anti-inflammatory drugs to reduce inflammation, such as metronidazole, etc., combined with the incision of pus drainage and root canal treatment, completely eliminate the inflammation, as follows. 1. Oral pain medication has a certain pain relieving effect on toothache, such as ibuprofen, diclofenac sodium, meloxicam, etc. Oral anti-inflammatory drugs can assist in the control of inflammation, such as metronidazole, tinidazole, etc. The above drugs should be taken under the supervision of a doctor. All of the above drugs should be used under the guidance of a doctor. 2. If the medication cannot completely eliminate inflammation and pain, the gum abscess should be incised and drained, and at the same time, the pulp cavity should be opened, root canal treatment should be carried out, and crown restoration should be carried out afterwards. In order to completely control the inflammation, eliminate pain and restore the shape and function of the tooth. It is recommended to go to the hospital in time to receive professional treatment as soon as possible.