What should i do for my runny nose?

ok so i have a runny nose for over a week and its not the liquid that comes out is just thick mucus thats really nasty when i blow my nose. so i been taking nyquil and that didnt work and i tried 2 diffrent nose sprays and one kinda worked for like 2 days so i dont know what else to take and i work 10 hours night shift and i hate having breath up my nasty bugers so what can i do