Dayquil, chicken noodle soup, and Sprite should work. I mean, it was the cure for Sars in a South Park episode.

Well if it was in a South Park episode that's good enough for me.

I take large doses of vitamin C and it seems to work. Honey is also good for your throat or something. So I drink a glass of warm milk with some honey and a piece of lemon peel (I don't want lemon juice in my milk). An ancient recipe :) Tastes good too. Two or 3 glasses during the day/night and it goes away just like that, never had the flu for more than 3 days straight. Another way is to make some lemon syrup (large amounts of sugar over some slices of lemon...after a night it turns into syrup. yummy).