I have had this "place" in my mouth on the inside gum right below tooth in the back. Like an ulcer. Been living with it, thinking it would go away. Now that tooth hurts. went to dentist, he said not an abscess, or wisdom tooth problem, looks like a gum problem. Gave me antibiotics anyway, just in case it is the beginning of an abscess. I am rinising with peroxyl. The tooth is a little painful when tapped. Is this the beginning of an abscess do you think?