Does anyone know if the small amount of steroids in the prescription steroid nasal sprays would have any real negative effect on us with M.E./CFS? I used Nasonex, and Nasacort AQ for years but haven't for about 3. I was using NasalCrom Spray which is OTC now and I think somehow related to Singular chemically but it seems to be making me have to urinate more. My sinuses are Ok during the day but always swell at night, whichever side I am laying on gets clogged and I have to roll over then the other side gets clogged. I've tried allergy pills, antioxidants, cleaning my sinuses 10x a day.....this has been going on for ten years. Anyone tried FLONASE?