Read the general stain removal guidelines. Treat immediately. The longer it sets the harder it is to remove this stain. Use hydrogen peroxide to remove these stains. Be certain to protect the surface so you don't stain it as well. Pour on the peroxide, wait 30 mintues and rinse in cool water. Repeat if that improved the stain. If it did not lighten then it's permanent. Iodine is very difficult to remove.