"My parentsí generation tended to put tincture of Iodine onto a fresh wound to prevent infection. This turns out to be helpful but not the best way to use it. Besides it stung badly when applied. It is much more effective (and doesn't hurt) to apply Iodine repeatedly after a scab has been formed. The iodine put onto the scab helps to organize total repair of the tissue. It is implied a similar approach could be taken to burns of all depths but at the same time the physiology of burns suggest there is an acute lack of thyroid hormone. (3)"