Homeopathic isn't the same as folksy. Folksy may or may not work, but at least there could be some potential method of action beyond the placebo effect. Homeopathic treatments are just placebos. They have been diluted repeatedly to the point where they don't actually contain any active ingredients.

For example, you put garlic into water, then take 1% of that water, mix it into another container of water, take 1% of that etc... Until the "medicine" doesn't actually contain any detectable garlic. The water supposedly retains some kind of "memory" of garlic.