Inflammation and swelling of the child’s gums can be examined orally, and the whole mouth surface tomography film can be taken for treatment as follows: 1. Filling: If the adjacent surface of the baby tooth forms a cavity, and a large amount of food debris is embedded causing redness and swelling of the gums, the decayed tooth tissue can be grinded off, and the cavity can be filled with glass ionomer, etc., and attention should be paid to avoiding the formation of a hanging protrusion. 2. If the adjacent relationship of milk teeth is poor and often embedded with food fibers, it can be used to adjust and grind the high point of the shape with a smooth turning needle to expand the adjacent space, so as to facilitate the discharge of food, and if necessary, it can be made into a resin preformed crown restoration.3. Root canal treatment: If X-ray shows that acute apical periodontitis has occurred in milk teeth, it can be carried out under local anesthesia for opening and draining of the pulp and removing the infected pulp, and then the root canals can be rinsed by applying 3% peroxide solution, and the root canal treatment will be completed in a later period.4. Anti-inflammation: If the swollen gingival If there are teeth erupting underneath the swollen gums, you can remove the food and soft dirt by applying iodized glycerin to speed up the anti-inflammatory process.