Prescribed penicillin today for a repeat tooth infection. Had it a year ago, and then it went, but now it's come back. A build up of fluid in gums above or in infected area. Have had two penicillin so far, along with Ibuprofen at 4pm and 8pm. Intend taking more at midnight, then I am on four a day every 5 hours. Face is swelling and gums feel numb. Is this normal, in that the penicillin is doing what it is supposed to and this is what is supposed to happen. I have taken before and been fine, so sure it's doing what it is supposed to, but face seems to be swelling more than before since I have been on the pen. Not sore to touch, just feels like the start of a balloon on my face around the infected area.