had teeth problems (capped) anxiety big time, having short of breath any antibiotic that works better with short of breath.

I have been given three antibiotics keflex which I read don't use if you are short of breath, Dalacin which made me sick, and was told never to use ciprofloxacan because of my sensitive stomach, I have some sort of infection that just makes me sick, and of course the fear big time of going back to the dentist, I am on a antivan for a anti anxiety but any other antibiotic I should take to ensure no other bad stuff, but I do have shortness of breath. thank you for any input.