Levofloxacin
"I was given levaquin for a sinus infection and bronchitis.  After first dose the sinus pressure was gone and after the third dose the chest congestion was breaking up.  I am on the fourth day now and feel much better than I did five days ago.  I was also told to take Musenex.  Next time I wont wait two weeks before going to the doctor.  The only side effect I have is the itching all over, but that is much better than not being able to breath."