★★★★★
Diatomaceous Earth, food grade, is wonderful stuff. Use it with respect - you do not want to inhale it. I had a sinus infection, which developed following a cold, for several years. The doctors couldn't figure it out. I heard of DE, did copious amounts of research, and ordered some. I put about a teaspoon in a glass of apple juice for about 5 days. That was last winter. My sinus infection went away, and has yet to come back. Now, when I'm feeling crunky, I take some. Awesome stuff. Also use it in my garden to keep the slugs away. :)