What does amoxicillin do?

Amoxicillin does not kill bacteria, but instead it prevents new bacteria from forming, thereby allowing natural healing to occur.

Amoxicillian works on a cellular level by binding to a receptor on the bacterial cell wall that is called a "a penicillin binding protein (PBP)". Once Amoxicillin binds with this protein the bacteria can no longer produce peptidoglycan which provides the cell wall with stability. Without the Peptidoglycan the cell wall collapses and breaks apart - therefore destroying the bacteria.

No new bacteria is formed, therefore your immune system can eliminate the bacteria that was already formed and you are healed.