As far as a cold goes, what works for me is to have a killer work out. I was so miserable with a bad cold once, my brother dragged my ass to the tennis courts and we played for about two hours. Damn near killed me but I think I sweat all the bugs out of my system as I felt MUCH better the next day!
Oh...or a nice hot sauna if you have access to one.
Hope you feel better soon!