With an infected tooth or socket, you NEED to go back to the dentist.
You'll probably end up on antibiotics, and likely an anti-inflammatory.
I've removed a post in regards to rec use of perscription drugs. Come on, please leave that subject alone.
Seriously... go back to your dentist if you're having problems. We are not medical professionals here (with a couple notable exceptions, namely FBR, Birdgirl, and Dave Byrd) and can't give good advice.