<s>[INST] Hi one of my teeth in the back fell out afew weeks ago but it has being causing me problem s for the last few days the gum exposed is quite soar now my  left cheek is quite tense and feels swollen its on the side were my gum is exposed what can i do to stop this [/INST] Thanks for your query, I have gone through your query. The exposed or swollen gums can be secondary to chronic irritation by the broken tooth. The roots of the tooth can be present below the gums, that is causing irritation to the overlying gums. Consult an oral physician and get a radiograph done to confirm the diagnosis. Then get the tooth removed. Meanwhile you can take a course of antibiotics like amoxicillin and metronidazole (if you are not allergic)I hope my answer will help you, take care. </s>