I have a tooth that is in really bad shape. the nerve was extracted and it was supposed to filled, but i had no money and it remained so and agravated in time. Now i have a small round swelling on the gum really HIGH above this tooth. I don't have money to consult a dentist. Could you please help me out? Should i take antibiotics? I have Augmentin 500 in my house, would it work? How often should i take it if so? I also might have gingivitis.