The most common cause of inflammatory masses or pus overflow on the gums is the acute onset of chronic apical inflammation, mostly triggered by the spread of untreated pulpitis or pulp necrosis infection to the periapical tissues, and can also be caused by trauma or bite trauma. In the early stage, due to the small extent of the lesion, the periodontal tissue in the apical region is only vasodilated, edematous and exuding, and the affected tooth has a slight pain, which is relieved when biting, but as the inflammation progresses it soon develops into a persistent dull pain, floating sensation, contact pain and chewing pain in the affected tooth. The preferred treatment method is dentistry specialist treatment assisted by oral detoxification and pain relieving drugs: 1. elimination. According to the priority of the disease and the doctor’s instructions to follow up on time, correct diagnosis and effective treatment, to prevent the aggravation of the lesion, to preserve the integrity of the dental array has an important significance, must be timely to the regular hospital stomatology, to avoid missing the best time for treatment.