Clindamycin
"I've had a reoccurring tooth infection from a chipped tooth . What started out as the usual throbbing pain and swelling in my gums against my tongue turned into my face and neck puffing up until my eye started closing. This occurred about 36 hours after the throbbing had started. Went to a walk-in clinic and was given the typical Amoxicillin 500mg every 8 hours for 14 days. After 8 days, in excruciating pain, I went back to the walk-in and got Clindamycin 300mg every 6 hours for 14 days...after 2 doses the abscess burst and drained, swelling & pain went down immediately and I was allowed to heal. Dentist was able to do root canal and have been problem free for 3 years now."