When you work for a "healthy" grocery chain and you happen to be sick as a dog, you have all kinds of natural/homeopathic/eastern philosophy cures to choose from. Sometimes you end up choosing about three and taking all of them at the same time.
But, I think I know why they work. It's because they taste so awful that you forget that you are as sick as a dog. Blech. At least, I cancelled all my plans for the weekend. I'm sleeping in. Later.