For a little while now I've had an almost completely blocked left nostriland I was wondering if anyone else has experienced this or knows what it may be. I shined a light up the cavity and could see what appeared to be what looked like a mucus membrane over the opening, or at least that's the closed I can explain what it looks like. I'm looking into insurance now(something I'm sure causes people with a pre-existing condition like CF nightmares...) but before I go to the doctor I still want at least some idea of what's up...anyone?