Pediatric insect toothache, you can take the following therapeutic measures respectively: First, when the adjacent surfaces of the milk teeth form caries, causing food impaction, resulting in gingival swelling and pain, you can remove food fibers, apply iodine glycerin to promote anti-inflammatory, and use composite resins, etc. to fill the cavities. Second, when deeper caries is formed in the crown of milk teeth and pain is caused by hot and cold stimulation, softened dentin can be removed, zinc polycarboxylate cementum can be placed at the bottom of the cavity, and then glass ionomer cementum can be used to fill the cavity. If the pulp of the baby tooth is exposed in the cavity and causes pulpitis or apical periodontitis, the pulp cavity can be opened under local anesthesia and the infected pulp can be removed to complete the root canal treatment. Fourth, when the milk teeth have formed residual roots and crowns and are repeatedly infected, the milk teeth need to be extracted directly, and the gap retainer should be made as soon as possible to wait for the eruption of permanent teeth.