With a compromised immune system, I have to be *really* careful about getting colds, etc. I have taken airborne faithfully for about a year whenever I am going to be in a crowd (shopping, movies, etc..) I had a touch of a cold, took Zicam, and the next day it was gone. I think Airborne is great stuff. Not so useful if you already *have* something, but an excellent prevention.
hth
beth