Patients with sore teeth during the month generally have a good prognosis if they are treated aggressively at a hospital dentistry department. Tooth soreness refers to the pain of teeth caused by various reasons, which is a common symptom in oral disorders and can be caused by dental caries, pulpitis, periapical inflammation and dental trauma. If it is caused by tooth decay, different cushion materials can be selected according to the degree of tooth decay and the carious surface can be filled to reduce the stimulation to the teeth. If it is caused by gingivitis, it can be treated by scaling and oral antibiotics after scaling. If it is caused by periapical inflammation, clean the inflammation tissue of the tooth pulp, remove the infection factor and perform root canal treatment. If the tooth is traumatized, the appropriate treatment can be taken according to the degree of tooth damage. Since there is breastfeeding during the month, the doctor needs to use the method of treatment that has the least impact on the mother. Therefore, when tooth soreness occurs, the cause should be promptly identified at the hospital’s dental department and treated according to the patient’s own condition. At the same time, in daily life, avoid eating cold, spicy and irritating foods, and take good care of dental cleaning.