<s>[INST] I have a  bump on the bottom gum behind one of my  front bottom tooth. It has a lil black dot right at the top of the bump ant bottom of my tooth. I took a tooth pick n touched it n infection came out but the black spot is stil there n the bump really didn't go down what is it? [/INST] Hello, Welcome Thanks for consulting HCM, I have gone through your query, as you have bump on my front bottom tooth dont worry this can be due to periodontal problem . May there is formation of Periodontal Abscess or periapical abscess if carious.Dont worry you do warm saline gargle two - three times a dayConsult dentist for radiographic examination and treatment .Hope it will help you . </s>