Le advice from your local neighborhood pre-med student:
Drink lots of water, get lots of rest. Do NOT take medicine unless your fever is life-threatening, as the fever is your body's natural defense against the virus (the heat kills it) Take showers and keep warm. Drink some more water and get some more rest.
If you are having pains/aches/whatnot, take some aspirin (as long as you haven't had bleeding or a stroke recently)
Yes, fatalis is right. Drink plenty of water, it's the best way for your body to cleanse itself. Also, try to eat plenty of citrus fruits. Citrus fruits (i.e. oranges, lemons, and limes) are loaded with nutrients that can help bolster your immune system.