I guess each case is different, and some of my doctors know my history better, like my oncologist, having had Staph/MRSA/cellulitis issues before, so antibiotics including pain meds, were prescribed pretty much as needed when a new infection appeared, and long term before dental surgery by the oral surgeon. This was over the course of several years, so I can't give exact figures, but it was chronic, and the oral surgeon insisted on Augmentin, which is Amoxicillan combined with clavulanate potassium over other antibiotics like just amoxicillin, different doctors had prescribed being when you're in pain you go to the nearest, and quickest person that can help you or used what I had on hand.

When I was in long term antibiotics I was told by the oral surgeon I didn't have to do the salt water rinse either, the same with chlorhexidine after a while, and that was stopped too when the infection appeared gone.

Now I just have to keep the back slowly 3rd molar open socket clean with syringe, which is going to take time due to radiation, and it's already been 10 months, with one conservative surgery failing to close it.

Post surgeries, my oral surgeon insisted I must take the Augmentin to prevent infection.