I have successfully fought off the cold/flu stuff as it started to get me, a couple of times recently, by taking repeated massive doses of Vitamin C + Other Good Ingredients, available in packets you mix with water and drink.
I recommend paying the surcharge for the name brand "Emergen-C" (either raspberry or tangerine flavor) - the generic equivalents are NASTY!! Good luck!
Thread #10 22 year M, MLC, Piecing since 1/07 Goal: Live with confidence & enthusiasm!