soleik: There are many kochos in the world. We’ve lost much of that ancient knowledge, but it does exist. I’m sceptical about these kind of things because we have no way of knowing what is real and what is invented/imagined (99.9%?).
Dayan Fisher, though, was no minor personality. I was told that his segulos/remedies (he had many) had been passed down from many generations back.
BTW, ECV does have its risks.