The fastest clinical treatment for dry socket is to use saline and hydrogen peroxide to rinse the socket repeatedly, and then put iodoform gauze to promote the growth of granulation tissue. The cause of dry socket is unknown and may be related to intraoperative or postoperative infection. Generally, there is severe pain radiating to the temporal part of the ear three to four days after tooth extraction. Clinically, after local anesthesia is administered, the socket is thoroughly scrubbed with instruments and then rinsed out alternately with saline and hydrogen peroxide, and then iodine-form gauze is put into the socket to guide the growth of granulation tissues, which can be recovered in one to two weeks. Dry socket examination can be seen in the extraction of empty socket, alveolar socket with corruption of necrotic material odor is obvious, drug analgesia is generally ineffective, should be timely to the hospital treatment.