How to un-stuff a stuffy nose?

Hey! So I tried afrin, allergy medication, eucalyptus oil in a cup of steamy water and inhale through nose(hard to do when u can't breath out if it, constantly blowing, gargling salt water, and handstands(works but quickly plugs up after standing)! My cuz has a gra party tomorrow and I'd like to be able to ind a remedy so I can breathe:) Ty