Cancer is caused by parasites in your body. Drink a special tea and give yourself enemas and the parasites and cancer would come out. Really! If you looked in the toilet you'd be able to see them. (and this may not even be the wierdest.)
One sister believed that radiation hit your roof, from the sun i guess, and to be healthy you had to climb up on your roof and wipe a plastic bag full of salt across it. That would take care of the radiation once and for all. This particular sister sadly died of untreated breast cancer because she believed she could pull the tumor out with hot, herbal compresses. Left three kids.
There was an "herbalist" in our circuit who could tell what was wrong with you by looking and listening to your symptoms. You could be cured by drinking quarts of nasty tea and giving yourself enemas with the same tea. Our congregation also believed in a grape diet that included, you guessed it, multiple enemas a day!