she said my tooth has an infection and that this antibiotic should knock it out. I have to take the liquid 4 times a day. I just got it today and have taken it two times so far. When should I expect to feel no pain or at least feel it's getting better? each time I take it I feel like my tooth hurts worse?? Please share your experiences with this antibiotic or something like it.
I had a root canal on this tooth twice

( The last root canal was July 07' I don't want to get a third one if this antibiotic does not work.
This is a new dentist, my other one quit last month!!