I certainly hope it helps. The whole getting stuffy thing makes it hard to tell if you're getting sick or if it's just the swollen sinuses and can make you miserable. If you are catching a cold though my doc says robitussin is safe to take and also if you can find children's Tylenol for cold but I always try to clear the sinuses first to make sure.
I will try the shower 1 my mom has recently gone food shopping for me because my son has a minor case of vur that can ether get worse or better so she has took the lliberty of taking all processed and bad as she called it food and replacing it with natural and health food along with it she accidently threw my chilly powder away
If you like spicy food try cooking with chilli powder it clears my sinuses up in no time but as gross as it sounds if spicy isn't an option I'll run a hot hot shower and turn shower head so it's not hitting me and use the steam to loosen everything so I can blow my nose. It's usually just a lot of clear stretchy thick mucous in there from swollen sinuses because of hormones
I can not use a humidifier the moisture and heat I will wake up with a bloodie noise
I use a humidifier in my bedroom at night and it made a world of a difference.
Try a netti pot. I have one and It helps whenever my nose Gets stuffed up
Cough drops or some winter fresh gum Lol it helps open me up at night