Any method used to relieve pain when a tooth nerve hurts requires a certain amount of time to act, and it is generally impossible to achieve immediate pain relief. When a tooth nerve pain occurs, you can rinse your mouth with light salt water or pepper water to remove food residue from your mouth. Contain ice on the painful part of the tooth nerve or use an ice pack on the face. Then use anti-inflammatory and pain-relieving drugs as prescribed by the doctor, such as amoxicillin and ibuprofen extended-release capsules, etc. The pain may generally be relieved. If the pain is not relieved or worsened, active treatment of the primary disease is required. A variety of causes can cause dental nerve pain, and some diseases cause dental nerve pain that is not easily relieved or will recur after relief. It is important to actively treat the primary disease to alleviate the root cause of dental nerve pain. Common conditions include the following: 1, pulpitis: inflammatory reaction of the dental pulp will increase the secretion, retained in the pulp cavity, so that the pressure of the pulp cavity increases causing pain, this situation should be timely to the hospital to open the pulp drainage, in order to reduce the pressure of the pulp cavity, while following medical advice oral anti-inflammatory drugs, the pain will be relieved after treatment; 2, periodontitis: remove the periodontal food residue and secretions, mainly to eliminate Periodontal local irritation factors, treatment of periodontal pockets, with pus to be incised and drained to relieve pain; 3, periapical periodontitis: the pulp chamber should be opened for drainage and drainage of pus in the acute phase, and the secretions and inflamed tissues in the root canal should be removed after the acute phase is relieved to eliminate the lesion and then fill the root canal, so that the treatment effect is better, and the tooth nerve pain will not occur again after the treatment is recovered. Therefore, it is more important to do regular oral examination, early detection of diseases and active prevention of diseases, and to increase exercise appropriately to improve the body’s ability to resist diseases. Normally, it is necessary to practice good oral hygiene, which is also conducive to the prevention of oral diseases.