Humidifier for Congestion?

I do the same thing!! I get a lot of chest colds and everyone says "get in the shower, it'll help clear your lungs," but it makes me HUGELY worse. I think the warm, moist air thins the mucus, and for some people that helps, but for me it just seems to spread around to more of my lungs when it's thinner... but for whatever reason, warm moist air makes me more congested, too. I take Sudafed, that helps.