Children with swollen lips should have an oral examination and take measures to reduce swelling after taking a full-mouth surface tomography film, as follows: a. If the incisive ends of the upper and lower front teeth are sharp and repeatedly rub the lip and buccal mucosa, forming traumatic ulcers, smooth car needles can be applied to adjust and grind the incisive edges to reduce irritation, and the surface of the ulcers can be sprayed with gold throat health spray and rehabilitation new liquid to speed up healing. If the X-rays show acute periapical inflammation in the milk tooth and a large amount of inflammatory secretions around the root, pulp drainage can be performed under local anesthesia, the infected pulp can be removed, the root canal can be flushed with 3% hydrogen peroxide solution, and if necessary, the abscess can be incised along the labial-buccal groove and rubber drainage strips can be placed, together with the application of antibiotics, etc. Third, if the child takes allergy-causing drugs or food to cause the swelling of the lips, you can immediately stop taking drugs and food and apply desensitizing drugs.