Great news, James. I know Iodine works for removing moles, suspected it would work for skin cancers too; now I know it is possible!
Maybe not compareable to bcc, but some moles came back after 1 1/2 years; then I removed them again. I now plan to paint the area maybe once a month and see if they stay off this time.
-As you say it comes off in several layers before they are gone; the great thing is that it is no scarring or mark under the moles.