Hi! In 1999 I had a root canal on a lower tooth. I have had about 5 abcesses since. My latest one began in October 2012. In January 2013 I took pen vk 500mg qid for 10 days. 2 days later I started and finished 10 days of clindamycin 300mg for 10 days. The infection remained. I had the tooth extracted last Thursday, April 26 and finished 10 days of Amoxicillin 500mg today, April 29. I still have a small amount of purulent drainage and a small white abcess is forming on the inside of my gum. Can u please give me your recommendation to get rid of this infection. Thank you so very much for your time!!!