Be careful about using rubber bands to remove your own keloids. Rubber bands are often used to remove keloids. This is a risky procedure, as you cannot fully control the extent of injury that you may be causing to your normal tissues.
Below is an image of poor outcome after using a rubber band technique to remove a keloid from the ear. As you can see, the rubber band destroyed the normal edge of the ear, leaving a permanent mark on the ear. This damage cannot be repaired due to the fact that any form of surgical intervention to re-shape or to repair the ear will result in formation of a larger keloid. There is also some keloid tissue left behind that still requires proper treatment. For all these reasons, I advise against using rubber bands on keloids at home.