I always find it helpful, when you have sinus issues going on, to fill a sink with water as hot as you can get it (I do about half full with the hottest tap water and then throw a kettle full of boiling water in) and put a glob or two of Vicks Rub in. Then grab a nice thick towel, put it over your head and the sink and make sure there aren't any big gaps. Basically, it's a steam room for your head. You will probably want to have a chair pulled up! Breathe slowly and deeply, and you should start to feel things loosening. Stay in as long as you can, come out, blow your nose (it will probably be disgusting!!). Repeat as many times as necessary. I find that it relieves a lot of that "pressure" that comes with a head cold.
Feel better soon, hun!!!