I am recovering from a terrible sinus infection and a possible tooth infection. Seven days of treatment with Amoxicillin were just a waste of time. Now I've been on Augmentin for 3 days and I am starting to recover. My sinus condition is better but I still have a good sized boil just over the root of one of my teeth. I suspect that I am going to lose that tooth. At least the tooth does not hurt much anymore as most of the nerves in it are probably dead now. The tooth has been discolored for a while. My PA suggested that I wait to see if the Augmentin stops the boil before I see the dentist.