There are several types of dental neuralgia: 1. Patients with relatively mild symptoms show pain when eating something a little hard, and some patients show transient pain when they encounter cold or hot water as physical stimulation; 2. Patients with more severe symptoms show pain without stimulating the teeth, and the pain lasts longer, more than ten seconds, twenty seconds, or even half an hour. Another serious symptom is that the tooth pain occurs at night when sleeping, and there is a radioactive pain to the head and shoulders. In case of severe dental nerve pain, if there are antipyretic and analgesic drugs at home, the patient can take one pill orally to relieve the pain locally, and it is better to go to the clinic or hospital for further treatment as soon as possible.