Sigh! Smithn, been doing all that. Already can't breath w/out the nasal spray and no, I have only used it 3 days just like it said to on the box. My dr says to take the Robitussin every 4 hrs. I think he is thinking that the Zyrtec will rid me of the mucus. My chest burns so bad from it draining into my chest all night long. The problem isn't getting mucus to drain, nor is it a runny nose...I just can't STOP my body from producing mucus. It is very draining, and I have to be ready to go back to work by June 1st. Normally I'd say that's plenty of time, but its already going on 3 weeks now I've been ill. I got the Zyrtec the DR called in last night...frickin' 80$ just for that!!! If that doesn't work I will be so mad!