Ever since I got a cold 2 years ago, my nose is stuffy especially in the morning. Because of this, my sense of smell is pretty poor; I can only smell pungent smells. There's like greenish mucus build-up in my sinus area and when it's liquidy enough, I can just spray it out of my nose and it comes out in chunks. I have tried taking regimen of anti-virus medicine such tetracylins but to no avail. Cure me plz!!!