you can erase them: mark the spot with iodine, take some salt and rub the first layers off the skin, until the paint is also gone. then apply some hydrogen peroxide and rub in some baking soda.  let the scab stay, don't take it off. after it dries and goes off, another layer of skin will also go off, and the tattoo is no longer there, and if you don't overdo it, there will be no scars after the procedure.
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