bronchitis
"A week after I had the H1N1 "swine" flu, I was having trouble breathing (bronchitis or pneumonia?) and the ER doctor prescribed 400 mg Avelox for six days.  By the third day I was breathing much clearer, and now at day five it seems I can breathe deeper than I think I have in years.  In fact, I think my lungs are a little sore from the good deep-breathing exercise! A great benefit has been that the Avelox has also been clearing up a chronic sinus infection that I've had for years (even after surgery) - the pressure headache is gone, and the post-nasal drip is barely noticeable now.  I am not having any side effects that I can attribute directly to the medicine that I know of.  So far so good; thank you Avelox!"