Root canal treatment can be done through medication and root canal treatment. 1. Medication: Root canal treatment does not work because some patients have low immunity and need a healing process. It is recommended to take anti-inflammatory drugs such as cephradine and cefazolin as well as painkillers such as ibuprofen and diclofenac sodium for treatment. 2. Root canal treatment: Root canal treatment does not work, it is recommended to go to the stomatology department to remove the crown on the tooth, if the pulp is not active, it will not hurt when removing the crown. Then open the root canal and carry out perfect root canal treatment to completely eliminate the inflammation of the root tip and achieve the purpose of treating the affected tooth. If the root inflammation of the tooth does not work, it is best to go to the hospital dental examination, and then symptomatic treatment. To keep the mouth clean and hygienic, you can use hydrogen peroxide to rinse the mouth, avoid spicy and stimulating food intake, eat a light diet, eat more vegetables and fruits, strengthen nutrition. The above drugs should be used under the guidance of a doctor.