A Canadian secret, this medicine is fantastic for preventing colds, flu and sore throats. At the first sign of a scratchy throat or congestion, start taking Cold FX and usually it goes away. I find it far more effective than Echinacea drops.
Traveling exposes you to lots of germs, either on airplanes, or because you might find yourself in situations where it is difficult to wash your hands often enough. The rapid climate changes to which a frequent traveler must adapt and jetlag’s draining effect on one’s immune system can also lead to colds.