I will try both moisturizing and gloves (though he tends to pull things off his hands, I will have to figure out a way to keep them on).

He stopped himself a few times today and said "all done picking mommy" but still managed to do some damage. He also brought me the bandaids this eveing and told me he needed one for his boo boo so he does kind of understand, but half the time I don't think he even knows he's doing it. He just zones out and picks away.