Well, there ya go...
Don't know if you take any supplements, but you may want to load up on Vit C & Zinc, just incase it tries to develope into a sinus infection, man those can be horrible...
I work in a high school, and w/everything that flys around there, if I feel one coming on I would drink Airborne (you know that stuff developed by a teacher), don't make me gittery and it's all natural. Seems to help... But at the least, drink plenty of orange juice and get as much c as you can.... There is the other stuff, it's a drink, called Power C I believe it is made by Ottawa (not sure on the spelling), taste really good, each serving is 1000% rda of C...
Hot soup will help to, believe it or not, helps open the passages.. That's what you really want to try and keep open to promote drainage..
Try to get bathroom hot and steamy, may help (as long as that ain't one those rooms we can't stand to be in

) Feel better sweetie, hey look at the bright side, at least you know... Trust me I get it.. I will get like a sore throat or the start of one, and think OMGish what is it, what's wrong, ah beck it's your sinuses draining to the back of your throat when you are sleeping.... (Then I proceed to tell my mind, SHUT UP...LOL)