Freepers: I am inquiring about what you take, especially if natural, to prevent or try to lessen the impact of colds, the flu, sinus infections, etc. I go to college, and my roommates and I have been hit with illness two times already...it isn't even Halloween. This is getting a bit old; I am seeking info on what works for you; such a thread can be used for people to refer to in the future hopefully about what really works instead of what lore exists about certain substances. There are little tidbits of info on FR, but I think it...