Hi Chemar,
It is important to understand that the tooth itself, is infected. The antibiotic will not cure the infected tooth because, the bacterial strains of infection inside the tooth are various and some strains will not be sensitive to any particular antibiotics that you are taking. The symptoms subside, temporarily, because the antibiotic calms down the inflammation.

Many dentists prefer to have their patient on an antibiotic for certain infections prior to performing oral surgery as a precautionary measure to help make the surgery a little easier and less riskier for the patient. In many cases, it is usually wise to undergo the oral surgery while you are still on the antibiotic.

If you have generalized infection, like periodontal disease and/or several infected teeth..... the same principal about taking antiobitics holds true. The medication will not cure the infection, it will simply subside the symptoms until the actual source of the infection is removed. If someone tries to avoid the actual dental treatment by taking repeated doses of antibiotics, the infection will proliferate and new strains of bacteria will develop.

I'm giving you (and others) this information because all too often people will be SO relieved to have the pain gone that they mistakenly think the infection is gone too.

Please keep us posted on how you're doing!

Bryanna