My doc just prescribed Claritin for me to ease my sinuses, I have never been able to go on allergy meds because I always feel dried out from them. My center assured me that CF patients have no trouble with allergy medication and it only dries out your sinuses - it has no affect on the lungs.Well, I took it for two days and noticed I had trouble getting my coughs out, I felt dried out and my peak flows went down significantly. Oddly - my joint problems felt better.Has anyone had trouble with allergy meds drying out their lungs? I want to make sure it's the Claritin and not me.Thanks!Piper