### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Prescribed penicillin today for a repeat tooth infection.  Had it a year ago, and then it went, but now its 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 its 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.

### output:

Welcome to Chat Doctor forum. It's very simple that penicillin has worked before to control your oral infection, doesn't mean that it will work for every time. Penicillin is a narrow spectrum antibiotic i.e. it works on limited number of bacteria. This time you may have been affected by some kind of bacteria that is not controlled by penicillin. Facial swelling due to infection is generally not sore in touch, as the pus or fluid produced from infection(inflammation) is spread into the tissue spaces of the face and does not create much pressure on nerve endings. But the continued facial swelling may lead to grave consequences. You should IMMEDIATELY visit to dentist. Let him/her examine your problem properly and prescribe a proper antibiotic to control your infection. Do not try to treat infective facial swelling by yourself. You may invite a serious trouble by doing this. Wishing you a good health.