Tooth swelling up to reduce swelling is mainly, for the cause of swelling, common in gingivitis, periodontitis, dental caries, wisdom teeth, etc.. 1. Gingivitis: the main reason for swelling is to remove the cause of the disease, use scaling to remove tartar, control plaque, remove the factors that stimulate the gums to cause plaque retention, local inflammation can be used with hydrogen peroxide, chlorhexidine and iodine preparations to anti-inflammatory. 2. Periodontitis: use scaling, eliminate local irritants, when the periodontal band overflows with pus, rinse with hydrogen peroxide, local application of Milocycline, etc., accompanied by loosening of the teeth, can be temporary, permanent splinting. If periodontal abscess has been formed, incision and drainage. 3. Dental caries: need to erase the base of caries after the use of drugs, such as sodium fluoride or silver ammonium nitrate to inhibit the development of caries. When substantial defects occur, fillings are used to restore the shape of the teeth. 4. Wisdom teeth: for wisdom teeth caused by tooth swelling, the need for peri-coronary irrigation, can take metronidazole at the same time for anti-inflammatory, after the elimination of inflammation, removal of wisdom teeth. Therefore, it is not recommended to take anti-inflammatory drugs blindly, it is recommended to go to the hospital stomatology department to find out the cause of the treatment, the use of drugs need to follow the doctor’s instructions.