How To Treat Nasal Drip Inspite Of Taking Sudafed?

Every morning I wake up I have nasal drip for 2 hours and this only occurs when I wake in the morning? I have tried allergy pills, nasal spray, sudafed, etc. Nothing seems to work. By the time I m out the door to go to work my nose is all red? My doctor is no help and can t seem to find the answer?