I have had a cold for a few days now and i bought a vitamin c supplement to try out something my friend told me to do wene you get a cold or a flu. It's pretty basic you just increase your vitamin c intake alot. I today took 2,000 mg of vitamin c and i dont no if it is a placebo affect but i already feel better. my nose is clearing up, and so is my head. has anyone else done or heard of this and if so have you had good results.