[YEA] Warm salt water works at onset of pain, I believe it prevents infection, I have yet to have worse pain after salt water, it just goes away. Hydrogen peroxide is an anticeptic and It works for my husband. As far as the antibiotics, unfortunately many people are allergic to penicillin such as myself as well as kefelx, so there is not a whole lot left that works on abscess tooth. There is e-mycin/biaxin, but they give me horrible stomach cramps. I think natural antibiotics are great, they work better for me. I prefer them over the harsh antibiotics that I am not allergic to.
Also, if you take a lot of antibiotics your body builds an imunity to those antibiotics eventually. That is why diseases, flu's, ect., are getting worse, they are becoming resistant to antibiotics. It also strips away the bio-flora in the lining in your stomach, which can cause a long list of health problems itself, yeast infections, reflux..
however, if it doesnt get better and reoccurs frequently you should not play around with not seeing a dentist, a tooth infection untreated can easily infect the blood stream, causing septicemia, weakening the heart, and could kill you.