If dry socket is clinically diagnosed, ibuprofen can be taken for analgesia, but the analgesic effect is limited, and not only ibuprofen, but all analgesics for dry socket are not particularly effective. Dry socket occurs about 3-4 days after tooth extraction, when there is constant, intense pain, sometimes radiating to the auriculotemporal region. There is also a distinct odor in the mouth and decaying, necrotic material in the extraction socket, which is a special type of infection. It is necessary to go to a professional dental institution to remove the necrotic tissues from the socket, and to apply hydrogen peroxide and saline to rinse the socket repeatedly and then put iodoform tampons for further observation. The application of painkillers and antibiotics can be considered for the medication, but they are all auxiliary purposes and mainly rely on local operations.