Funny that this should come up today as this morning I painted the excema on the palm of my hand with lugol's. Put on a latex glove so I wouldn't go around staining everything I touched.
Didn't hurt or burn - a little stinging for a second on the broken skin parts. My hand is actually better after one application. No new blisters which, after 10 years with this, I've learned is the key to letting the skin heal over.
Unfortunately, the Iodine had completely disappeared in only an hour ;-(
I am up to 6 drops 2X/day.