Dental neuralgia can cause headaches because dental neuralgia is also a symptom of pulpitis. Pulpitis is usually characterized by discrete pain, severe pain, and spontaneous pain symptoms, basically no irritating factors, but also pain, while hot and cold irritation pain is more pronounced and can bring pain to half of the face. This painful phenomenon requires timely treatment of pulp opening, that is, a timely visit to the dentistry department, where a hole is drilled in the tooth surface to expose the pulp and perform pulp opening and drainage, which can relieve the painful symptoms. At the same time, oral antibiotics, such as amoxicillin, cephalosporin or erythromycin, plus metronidazole or tinidazole, are needed to relieve the pain. If the pain is severe, pain medications such as loxoprofen sodium or fenbendazole can also be administered orally as appropriate. When the dental inactivator or open is sealed, the dental nerve will slowly necrotize, so that the pain will not occur.