I don’t know the details of this story, but I had an illness, and tried some antibiotics with no success. After a whole bunch more tests they decided it was a bacterial infection which had buried itself deep in my digestive system somewhere, and killing it required Fluoroquinolone —- which causes serious tendon damage in many people who take it.

It cleaned up my infection, and I didn’t have any side effects —- but hard to shift illnesses can require significant amounts of antibiotics with significant side effects.