I moved to AZ from Pa 10 years ago. Lately I constantly feel congested My nose is clogged at night, no matter what I do. I start with a runny nose and then it dries out & is white & thick. My sinuses constanly feel pressure. I have tried Claritan, Zyrtec, Nose spray. No matter how hard I try to blow my nose, I feel clogged & and have post nasal drip.! This is a really gross conversation