Clinical common causes of facial pain, there are generally the following: First, the face of mosquito bites after the emergence of local allergic reaction, will cause local redness, swelling, pain performance. At this time, patients can take oral kairatan, loratadine and other drugs to improve the allergy symptoms, local topical application of 0.5% vitality iodine can also achieve a better therapeutic effect. Second, dental abscess or oral ulcer patients, this time the acute infection in the oral cavity will cause swelling of the facial lymph nodes, resulting in obvious pain symptoms. Patients need anti-infection treatment as soon as possible, after the control of inflammation, pain can be relieved faster. Third, the patient’s face due to trauma caused by local soft tissue swelling can also cause pain, at this time can be through the local ice packs, reduce tissue exudation, or oral pain and other drugs to improve the patient’s symptoms.