Tooth flesh swelling and pain can be treated with dental treatment or rinsing around the crown to relieve the pain. The common cause of tooth flesh swelling and pain is tooth nerve necrosis due to tooth decay and inflammation gathering in the apical area, which can lead to gum abscess and tooth flesh swelling and pain if not treated in time. This condition requires root canal treatment of the tooth to relieve. The infected nerve is removed, followed by root canal disinfection and a tight root canal filling after the inflammation is controlled. Swollen and painful flesh can also be caused by pericoronitis of the tooth and is most often seen in teeth that have not fully erupted, such as wisdom teeth. Wisdom teeth are prone to varying degrees of obstruction due to lack of space. The crown of the tooth is covered by gums and bacteria can grow around it, causing pericoronitis, in which case a pericoronary rinse is required to improve the pain. Swelling and pain in the flesh of the tooth may also be due to periodontitis or gingivitis, where food debris or soft scale accumulates around the tooth without timely brushing and rinsing after eating, causing the gums to become red, swollen and overflowing with blood over time, resulting in pain in the flesh of the tooth. This condition requires scaling to remove local irritants and then rinsing with medication to relieve the pain. Therefore, tooth flesh pain can be improved by dental treatment, or rinsing and medication.