I rarely get colds now. Like everyone else, I used to get them all the time. Lucky me, I now get sinus infections instead.
Crazy as it sounds, I use a menthal-liptus type losenge when I feel a sinus infection coming on. For some reason it usually stops the infection. They taste awful, but I'm glad to suffer through the taste for a day or two - beats the heck out of a sinus headache/infection that won't clear without antibiotics.
Vitamin C/orange juice doesn't help me at all. It just gives me nasty cankor sores and fever blisters. Guess I'm extremely sensitive to it.
Feel better!