I knew of dubs back in the 70s, who went down to Mexico for the Laetrile cure. Of course it cured nothing and they died. I have nothing against herbal or other alternative medicine if it's nothing serious, but it doesn't take the place of a doctor. Every congregation seems to have a resident medical expert that thinks they know more than any doctor.
My sister is always trying to push her "cures" off on me. She put iodine on me, supposedly if your body absorbed it in 24 hours it indicated you were low in iodine, so you needed to take supplements, actually everyone should take them as we are all low in iodine. She gave me the pills, but I never took them. The last time I was there she was going on about ionized water, which is supposed to be a cure all. I told her I had read up on it and it was bunk, which offended her deeply. She was saying, look, it made my hair really soft. I had a hard time not laughing. Now she goes to some dub quack who has a magic machine of some sort. Sounds like snake oil to me. It hasn't stopped her seizures, she thinks she has late stage Lyme disease, but fired all her Doctors because they didn't tell her what she wanted to hear I think.