Have you ever considered Jurak?
www.jurak.com. I have been on it for about 3 years now, and I haven't had a cold since I started it, and I have only had indigestion about 3 times since I started it. I used to get that about 3 times a month. I don't want to brag about Jurak, but I haven't seen anything that even comes close to its performance. Don't take my word for it, read some of the testamonals on their sight. I know some of these people personaly. I could tell you many first hand stories but, I'll let the testamonals speak for themselves. I used garlic myself, but I never got these kind of resaults from garlic.