Children with an abscess on the gums may be alveolar abscess, usually need incision and drainage, local application of antibacterial drugs, while the cause of root canal treatment. Children with pus on the gums, may be caused by dental caries periapical abscess, if the pus has a fluctuating feeling, you need to seek medical attention in time, can be operated by the doctor for abscess incision. Drainage of pus, local application of povidone-iodine antibacterial drugs after the simultaneous root canal treatment to establish drainage channels. With abscessed gums, it is recommended to pay more attention to oral hygiene, develop good feeding habits, and avoid eating overly sweet food. Regular oral examination or fluoride can be applied to prevent caries. Children with abscesses on the gums are recommended to visit the hospital in time to receive specialized treatment.