Tooth declarations are usually caused by swelling of the gums, and the corresponding part of the tooth can be examined by radiographs to see if there is a problem. If there is a low-density shadow at the tip of the tooth, it is generally caused by the inflammation of the tip of the tooth, which requires root canal treatment, and the tooth can be lacerated or cut open with a knife to discharge the pus, or wait for its self-absorption. You can also choose erythromycin drugs. In addition, if the gum is caused by the gum, gum inflammation around the gum with calculus stimulation of the gum, you need to do periodontal treatment, generally choose the way to scaling for treatment, and it is recommended that regular medication to promote the period of inflammation, commonly used minocycline hydrochloride.