It’s a significant, reproducible, higher-than-placebo, increase in survival rate by a given healer (or a set of healers using a given faith). And that is, as far as I know, not backed by any study (or if it is, please show me the link).
That said, if you get the placebo effect from going to a faith healer, do it.
That said, if you get the placebo effect from going to a faith healer, do it.
Unless you can get it cheaper ways...