Dry socket occurs mostly on days 3-7 after tooth extraction treatment. Dry socket is an osteotraumatic infection of the alveolar bone, i.e. the area of the maxillary or mandibular bone of the alveolar process. It usually occurs after tooth extraction and is more frequent in the mandible than in the maxilla due to the relatively poor blood supply to the mandible and the greater tendency for daily food debris to collect in the mandible. Typical symptoms are moderate to severe twitching soreness in the fossa area, pain that may radiate to the head, cheek, or other areas, and most patients also exhibit symptoms such as bad breath, swelling, and bleeding. Currently, debridement surgery is the most effective and straightforward way of treating the infection by thoroughly cleaning the infected tissue, followed by repeated irrigation with an antiseptic solution and placement of iodoform gauze on the affected area. The entire treatment process takes about 1-2 weeks. Patients undergoing extraction should drink enough warm water to keep the mouth as moist as possible and pay attention to postoperative wound disinfection care to reduce the risk of secondary infection.