Quote: "A difference I have noticed the last year is that whenever I paint a scratch, cut or something with iodine, it stays there for 2-3 days. While in the beginning it was gone in few hours."
Interesting: theoretically, it shouldn't make much difference, given the amount that just evaporates.
However, I don't think you are the first person I've read who has had a similar experience, so maybe the skin painting test is more meaningful than some people think.
I was going to say that I also share the slight concern about >50mg doses, given that even the Iodine doctors are fairly cautious about high doses. Even Dr David Derry said something about high doses for long periods being dangerous, although I don't think he spelt out what the danger was.
Perhaps it's just that they are/were all M.D.s with licenses to lose and they had to be officially cautious.