Swollen and painful gums in the back teeth require treatment for 1 to 2 weeks to reduce the swelling, but they do not heal on their own.
Swollen and painful gums are most often seen in gingivitis or apical inflammation. Gingivitis is red, swollen and bleeding gums due to poor oral hygiene, requiring periodontal scaling, and in severe cases, rinsing and medication is needed to relieve symptoms, which may take 1~2 weeks.
Apical inflammation is an inflammatory response to pus and necrosis of the nerve of the tooth, requiring root canal treatment to cure, gingivitis or apical inflammation resulting in swollen and painful gums need timely treatment, which is generally difficult to cure.
Therefore, swollen gums need to remove the causative factors in a timely manner, through periodontal scaling or root canal treatment, not to remove the causative factors of swollen gums is difficult to heal on its own, you need to go to the dentist for medical treatment.