Why is this ink special? Why can it be erased? If it's really correct, it doesn't disappear at all, but it is made invisible which is done by The heat that occurs when we Rub the rubber against the letters we write. Therefore, even if we use a hot blow dryer, the ink that stimulates writing will disappear as well. More importantly, there is a way to bring it back.  That is making that area  exposed to cold. And the letters that were exposed to heat It will come back!!!