Dental allergies are painful and sore, and the vast majority of patients can tolerate them without the need for pain treatment, so they can be observed, or they can go to the stomatology department of a regular hospital for desensitization treatment, where desensitizing medication can be applied externally to the exposed dentin, which can alleviate the discomfort of the allergy. Patients can also use anti-allergic toothpastes such as Comforta, and after repeated brushing with the desensitizing toothpaste, the symptoms of allergy will also be alleviated to a certain extent. If severe pain occurs in the teeth, according to the principle that the pain should not be caused by dental allergy, it is recommended that patients with severe pain, as soon as possible to the regular hospital stomatology department for examination. To see whether there has been a deeper caries, caused by penetration of the pulp pulp inflammation, or a chronic acute attack of periapical inflammation state. If pulpitis or periapical inflammation occurs, the pulp should be opened and drained as soon as possible, and the pain will be relieved immediately after adequate drainage.