More than 7 months pregnant, at this time the treatment is based on conservative treatment to minimize the pain of pregnant women. Should go to a professional stomatology department to see what kind of cause of toothache, if it is wisdom tooth pericoronitis caused by toothache, this time to local medicine, systemic medication must be cautious, local medicine is applied to the application of hydrogen peroxide plus saline alternating rinsing, supplemented with iodine glycerin convergence of the local blind pocket. If systemic medication is necessary, cephalosporins should be used as the mainstay, and drugs with large side effects should be avoided as much as possible. If the tooth pain is caused by dental diseases, such as pain caused by acute pulpitis, if there is no way to relieve the pain, in order to avoid the pain of pregnant women and cause possible accidents, as well as the need to carry out the pulp opening of acute pulpitis.