If it is determined that a toothache is causing the headache, the most common clinical symptom is acute pulpitis. In addition to painful, radiating pain causing auriculotemporal headache, acute pulpitis generally includes features such as nocturnal pain and pain that is difficult to localize. The best treatment for acute pulpitis is to go to a specialized dentistry department, where the physician identifies the position of the tooth and then applies a dental power system to open the pulp of the acute pulpitis so that the inflammation can be better released and drained. The pain of acute pulpitis will be relieved immediately after the pulp is opened, and then the next step of pulp extraction and systematic root canal treatment can be given to the pulpitis, and the patient will not experience pain after the root canal treatment.