Inflammation, swelling and pain after wisdom teeth extraction may be a chronic infection that requires cleaning the extraction wound to control inflammation, or an acute infection that requires incision and drainage of pus to relieve inflammation, as follows. 1. Chronic infection: the extraction socket of tooth fragments, bone fragments, tartar and other foreign objects or residual granulation tissue can cause chronic infection, the need for local anesthesia, thorough scratching and rinsing of the alveolar fossa, to remove the foreign body and inflammatory granulation tissue, so that the alveolar fossa to re-form the blood clot, normal healing. 2. Acute infection: most commonly seen in mandibular wisdom teeth extraction caused by the anterior pharyngeal space infection, the treatment is along the direction of the lingual nerve travel incision mucosa, drainage of pus, in order to alleviate the inflammation. There may be other reasons for the inflammation and swelling after wisdom teeth removal, so it is recommended to go to the hospital in time to receive professional treatment.