I was diagnosed with subglottic stenosis approximately 18 months ago. Since that time I have had six laserings of my trachea to remove the stenosis, which keeps coming back. Every time I have had a laser surgery, I have been put on a 10 day course of prednisone or decadron. The little drug interaction sheets that come with the steroids say that your immune system can be low for a whole year after taking the drugs. I have been told to take a medrol dose pack anytime I get a cold or an upper respiratory infection. However, I tend to hold off on taking those unless I feel my airway is getting constricted. My question is this... I have had numerous upper respiratory infections since my first surgery. For instance, since Halloween, I have had three of them. I have been prescribed Levaquin for those infections and they clear up for about a week, week and a half, and then BINGO!!! I am sick again. Could this be a result of the steroids? Or from being on so much antibiotics over the last year and a half? or a combination of both? Thanks for any thoughts!!