Swollen and painful flesh next to a large tooth usually does not heal on its own. Swollen and painful flesh next to a large tooth, i.e., swollen and painful gum tissue of a molar tooth, usually requires addressing the cause of the swelling and pain, otherwise it may cause an aggravation of the oral problem or recurrence of the swelling and pain. The main causes of gum swelling and pain in molar teeth are as follows: peri-coronitis caused by wisdom tooth obstruction, which can be relieved by means of periodontal rinsing and medication, and after the swelling and pain disappears, the doctor will then decide whether to remove the wisdom tooth; periapical periodontitis caused by tooth decay, which requires taking pictures at the stomatology department, and the doctor will carry out root canal treatment according to the specific situation of the periapical period; gingivitis and periodontitis patients have more calculus and plaque in their mouths Gingivitis and periodontitis patients have more calculus and plaque in their mouths, which may lead to swollen and painful gums over time and need to be removed by scaling and gum scraping. The main factors that lead to gum swelling and pain cannot be solved by self-healing, so it is necessary to go to the stomatology department in time to clarify the cause and give standardized treatment.