After the toothache face swelling can be first cold compress, ice bag wrapped in towel continuously applied to the swollen parts, if the temperature is too low, the skin can not tolerate, can be applied for about 30 minutes, and then rest 30-60 minutes for cold compress, after controlling the inflammation can be hot compress to speed up the recovery. The common causes are wisdom tooth pericoronitis, periapical inflammation, apical abscess, pulpitis, dental caries, etc. 1, wisdom tooth pericoronitis: according to the severity of the patient’s condition, local peroxide rinse sterilization, oral antibacterial drugs or systemic application of antibiotic treatment. After the inflammation is eliminated, the tooth will be treated and the tooth that has lost its function can be extracted; 2. periapical inflammation: the same antibacterial medication is needed first, after which the tooth will be evaluated and the tooth that can be preserved will be treated with root canal and the tooth that cannot be preserved will be extracted; 3. apical abscess: if an apical abscess occurs, the abscess will first be incised and drained, followed by the application of antibacterial medication and then 4.Pulpitis: After suffering from pulpitis, pulp drainage will be performed firstly, then anti-inflammatory and pain-relieving treatment will be performed, and finally the infected material in the pulp cavity will be removed through root canal treatment; 5.Dental caries: If dental caries appears without treatment, carious erosion will occur and the pulp will be exposed, and the infection will gradually infect the root tip and its surrounding tissues after entering the pulp, finally causing obvious swelling and pain in the face. For tooth decay, medication can be carried out in the early stage, and filling and restoration can be carried out for serious tooth decay.