Spring [1] finally convinced me to take some OTC (Over the Counter) medicine for my congestion and while the first few hours where really bad, I've generally been feeling much better as time goes on.
My relunctance for using OTC medication is that as a kid, it never really seemed to work as advertised, and as I've gotten older, I've learned that it's best to listen to my body and actually rest when I get sick, as apposed to loading up on drugs and carrying on with my day like nothing is wrong (which, to me, is wrong).
But I suppose that in certain cases (like what I have now) it's sometimes best to both listen to your body (“Sleeeeeep! I need sleeeeeep!”) and help it along with medication.