WholeFood farmacy has a liquid fast that is good for detoxing. You can check it out online. When my father was dying of lung cancer, he had gangrene in his feet. We took a healing clay, and used it like a poultice. We applied it several times a day. And within a week, it cleared up. It works really good for pulling out toxins. We use to use that black stuff too. And I can't remember the name of it. I will ask somebody. My mother also uses clay when she starts to have a flare of her Ulcerative colitis. She will drink it mixed in water. You can buy it in a health food store. I hope this helps.