There are a number of reasons related to the occurrence of swelling and pain in the jaw of a patient. For example, the patient may experience swelling and pain in the jaw joint area due to frequent chewing of food, which leads to the patient developing jaw arthritis. At the same time, there may be popping when opening the mouth, or the patient may have difficulty opening the mouth. In addition, if the patient’s jaw bone is fractured due to direct external force, the patient will also experience swelling and pain in the jaw, and there will be positive local pressure pain and mouth opening dysfunction. An X-ray of the jaw can be taken to make a clear diagnosis. The treatment can be conservative, with topical ointment to activate blood circulation, resolve blood stasis, reduce swelling and relieve pain, which can relieve clinical symptoms.