Children with toothache and swollen face want to quickly reduce swelling and stop pain, need to go to the hospital in time to check the cause of the disease, which is common in periapical periodontitis, need to carry out root canal treatment or drug treatment. 1. When the tooth apical periodontitis, due to the lack of drainage channels, inflammation can reach through the periosteum under the gums, due to the rapid onset of children’s condition and acute, inflammation can spread rapidly caused by the swelling of the face, the treatment is generally carried out for the establishment of root canal drainage channels, the fluctuation of the gums need to be surgically incised and drained. 2. In order to prevent secondary infection can also follow the doctor’s instructions to take antibiotics amoxicillin, local gargle chlorhexidine and other drugs. Children’s toothache face swelling is recommended to the hospital as soon as possible to avoid aggravation of symptoms caused by interstitial infection, the use of drugs need to comply with medical advice.