Depends on if I'm nauseous or not. If so, I stick to 7-up and saltine crackers. If not, I drink lots of water (I try to drink a glass an hour minimum) - most virus/bacteria don't like "moist" environments. Eat hot soup (broth based like chicken, turkey, vegetable - not cream - and may add some garlic salt or powder) - if I have congestion I add a little cayenne pepper to the soup.
Also, I keep warm - as hot as I can stand it. If I'm running a fever, I don't take anything to reduce it unless it starts getting higher than 102 degrees F - reason, is your raised temperature is actually killing the virus/bacteria off - if you kill the fever, you may be prolonging your illness (but if your fever gets too high, that is bad for you too - most common colds won't spike much higher than 102 for most people, those that do usually require outside help). That's why keeping warm helps too - raising your body temperature via external heat or fever will help (and also why you need lots of water).
I also "talk" to the cold and tell it I don't have time to be sick - and that now it's war. I tell my white blood cells to "seek and destroy" the virus/bacteria - whatever is trying to make me sick. I don't give in, thus the illness doesn't stick around long. I believe there's a lot of power in this - if you think this way, you are more likely to fight the illness and do whatever it takes to provide your body with what it needs to fight vs giving in to the illness and being out for 2 weeks.
Hope whatever you have isn't bad - good luck in the fight!