Hello - I Just Have Been Taking Care Of My

Hello - I just have been taking care of my 1st time swollen right top lip , and my pharmacist mentioned I need to get a medicine from my dr since it may also be infected - I have had 3 teeth removed the past 6 months, and just had one flipper placed in the front of my teeth .. and EVERY YEAR have sinus infections .. and was wondering what the I world is for the medicine I may get.