Root neuralgia patients is an indication of endodontitis, for this patient in the acute phase of pain can take their own pain medication, such as ibuprofen or fenbid to relieve pain, but also can take the appropriate amount of anti-inflammatory drugs to reduce inflammation, such as oral cephalosporin and metronidazole to reduce inflammation. At the same time in the diet to avoid eating too cold, too hot food, and do not chew too hard food, so as not to irritate the teeth lead to more intense pain. After suffering from endodontitis, you also need to consult a doctor in time to do root canal treatment, root canal treatment is currently the only effective clinical treatment for endodontitis, root canal treatment usually requires 2-3 visits to complete the entire course of treatment. The first step is usually to open the pulp chamber under local anesthesia and seal the pulp chamber with a drug that inactivates the nerve, after which the pain in the tooth will disappear. Step 2 involves cleaning and disinfecting the root canal of the tooth. In step 3, the root canals are tightly filled. After the root canal treatment, the pain of the tooth will disappear completely and the tooth can regain its chewing function partially or mostly.