When patients have toothache, they should go to the stomatology department of the hospital as soon as possible, and after the cause of the disease is clarified through professional examination, treatment should be carried out for the cause. Usually the causes of toothache include trauma, dental caries, pulpitis, periodontal abscess, etc.: 1. Trauma: For toothache caused by trauma, X-ray examination can be conducted first to clarify whether the tooth is cracked, and then anti-inflammatory drugs can be used for treatment; 2. Dental caries: After the appearance of dental caries, it will erode the surrounding tissues and cause pain by bacterial infection. In addition to the application of anti-inflammatory drugs, drug application, filling and restoration treatment should be carried out according to the condition of the tooth; 3.Pulpitis: When pulpitis occurs, you should first go to the hospital for pulp opening and drainage, and then root canal treatment to remove the surrounding necrotic tissue; 4.Periodontal abscess: After periodontal abscess occurs, firstly, pain relief and anti-infection treatment should be carried out, and incision and drainage should be carried out after the abscess takes shape. Secondly, after the inflammation is eliminated, scaling should be performed to remove calculus and plaque from the teeth; 5. Others: When pericoronitis exists in wisdom teeth, hydrogen peroxide can be applied for blind pocket rinsing to control the inflammation, and extraction treatment is feasible if necessary. In addition, when there is inflammation or abscess in the maxillary sinus leading to toothache or toothache caused by trigeminal nerve, after symptomatic treatment, the symptoms of toothache will also be relieved. For toothache, prevention is one of the effective ways. In daily life, you should develop healthy oral hygiene habits, go to the hospital for oral review regularly, learn the correct way to brush your teeth, choose the right toothbrush and toothpaste for you, rinse your mouth after meals, and use dental floss to remove food residues embedded in the interdental crevices. If there is dental calculus, it should be removed in time.