When children have toothache, the cause should be identified before pain relief to avoid covering up the condition. The effective way to treat children’s toothache is to treat according to the cause, the specific methods are as follows: 1, caries: children often have caries due to improper diet and other reasons, caries will cause toothache, then you can use sodium fluoride glycerin paste externally or use fluoride ammonia silver filling to treat caries, so as to relieve toothache symptoms; 2, periodontitis: periodontitis caused by plaque and bacterial invasion of periodontal tissue, periodontitis will cause periodontal appear The symptoms of swelling and pain can be treated with antibiotics, such as roxithromycin, cephalosporin, etc. At the same time, oral hygiene should be maintained to avoid bacterial growth; 3, pulpitis: pulpitis is a disease caused by bacterial invasion of tooth tissue causing pulp infection, when children suffer from pulpitis, it will also cause tooth pain. In principle, the treatment can be done by preserving the living pulp and putting pain-relieving drugs into the affected area for pain relief, and then root canal treatment or tooth extraction according to the degree of the affected tooth; 4, gum trauma: when the gum is traumatized, it can also cause toothache, which can be improved by applying anti-inflammatory and pain-relieving drugs, such as Dacronin solution and nourishing yin and muscle. If toothache symptoms appear, it is recommended to go to the hospital for standardized treatment in time to avoid delaying the condition. Daily children should pay attention to oral hygiene and living habits to reduce the triggers of toothache.