Dry socket is currently considered to be a limited osteitis that occurs locally in the extraction socket after wisdom tooth extraction. Normal socket healing occurs when a blood clot fills the extraction socket after tooth extraction and forms a high-quality filling that coagulates to protect the socket and promote healing. During the healing process, if the clot is dislodged or infected, it may lead to dry socket. What is the manifestation of dry socket: The typical manifestation is severe pain involving the extraction socket and the ipsilateral ear and temple that occurs 3 or 4 days after the extraction, and the effect of oral pain medication is not obvious, or the original pain is significantly aggravated. Therefore, if you have the above symptoms two days before the extraction of wisdom teeth, you do not have to be too nervous and can try pain medication because the diagnosis is not clear at this time and blind treatment may interfere with the normal healing of the wound instead. 2.The scope of pain involvement: especially the ear and temple, if it is limited to the extraction sockets, the possibility of postoperative reaction is higher. 3. General painkillers are ineffective: For example, if pain eating painkillers is not effective at all, you may have to come to the hospital for examination.