The cheek next to the big teeth in the mouth is also known as the occlusal area. Inflammation in the occlusal area may be wisdom tooth pericoronitis or mumps, which should be treated with local rinses or surgical treatment with medication. 1. Wisdom tooth pericoronitis. Wisdom tooth pericoronitis, due to eruption obstruction, the gums around the wisdom teeth can be swollen and red, forming deep gingival pockets, the inflammation is more serious, but also cause buccal interstitial infections, mandibular lymph node pain, the general use of saline rinsing, no obvious exudation of topical iodine povidone, and then turn into a chronic phase after the extraction of wisdom teeth. Buccal space infection abscess formation also need to consider local incision and drainage of inflammation, oral antibiotic amoxicillin anti-infection treatment. 2. Parotitis. Decrease in body resistance or bacterial infection can cause parotid inflammation, resulting in parotid area swelling and pressure pain, catheter mouth redness and pain, pain intensification can cause swelling centered on the earlobe, generally using effective antibacterial drug treatment (penicillin, roxithromycin). Oral bite, the site of the inflammation is recommended to the hospital in time to check, targeted treatment, to avoid the spread of inflammation, the use of drugs need to comply with medical advice.