There is no fast way to reduce the swelling of wisdom tooth pericoronitis in pregnant women, and it can be improved by oral anti-inflammatory mouthwash and local rinsing in conjunction with the severity of the disease. Pregnant women with wisdom teeth pericoronitis are not recommended to extract the teeth or take pictures, because the body is in a special period after pregnancy, during the operation period may cause harm to their own health as well as the health of the fetus. If the localized swelling is not particularly serious, you can follow the doctor’s instructions to mouth chlorhexidine mouthwash or saline gargle, can relieve the localized swelling. If necessary, you can also go to the hospital, operated by a professional doctor, the use of hydrogen peroxide and saline alternately rinse around the wisdom teeth, the local food debris rinse, can relieve the local swelling. After rinsing, topical iodized glycerin can be applied. If conservative treatment does not improve, pregnant women need to go to the hospital stomatology department for relevant examinations, combined with the physical condition, to take less harmful to themselves and the fetus.