Unusual uses for white iodine

DEAR DR. GOTT: I have heard that white iodine is good for strengthening nails but have not been able to find out the correct way to use it. Thank you for any help.

DEAR READER: I wrote about white (decolorized) iodine last March but will gladly provide an update for this seemingly remarkable product. We all remember growing up with the familiar red liquid in a small bottle that had a glass applicator in our bathroom medicine cabinets and everyone who looked at us and our skin knew where the cuts and scrapes had been treated. Well, things have come a long way since then.
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