Catching a cold? Impossible. Never. So called common cold was solved 5,000 years ago in Chinese medicine. Back then it wasn't Chinese medicine: it was TONIC HERBALISM. What's tonic herbalism? Instead of taking herbs when you get sick, you take herbs every day as part of your lifestyle and diet so you never get sick. Here is another thing that's great about it: these herbs are dual directional they will modulate for you. If your immune system is too far up it brings don, if your immune system is too far down it brings back up. There's only about 30 herbs in the whole world that are dual directional. The way I started was that I was cornered by a maniac in a health food store...you know like.