Can you swallow pus from a burst tooth abcess while on antibiotics?

Yes. Although likely foul tasting it would be just another protein source with most germs killed and debris digested in their transit through the gut. I'd spit out what I could, but not worry about the rest.

Yes, but will b e inactivated by stomach acid. Important that abscess be treated immediately as bacteria will spread through your circulatory system to other organ. systems. Antibiotics will slow (n to eliminate) spread of infection. Please see Dentist for appropriate treatment..