Weren’t there other problems with these fish? I seem to recall it wasn’t such a good idea. (Personally I think it’s gross).
I guess the devil is in the details, so to speak. I for one would love the details too. :)
Beyond being a fad, I can see where they would offer some relief, even if temporary, to those with chronic skin disorders such as psoriasis (of which I suffer).
Piranhas work too, but just a tad to extreme or me. :-)