bacterial infection
"I had a toothache and went to the doctor who gave me penicillin, which didn't work. My face blew up and was extremely sore. I went back after 3 days on that it and the dentist gave me clindamycin. Got to say it is killing the infection and the pain is much less. As well as the swelling, the only problem I have had is the horrible taste that keeps coming up the back of my throat. Not like heartburn though because there is no pain.. just a nasty bitter taste. I'm still mid course so I hope the rest goes smoothly."