Numbing cream is applied to the skin to make the process comfortable. Then, the laser is used to remove the unwanted mole.   Following the procedure, it's common for the skin to experience scabbing, swelling, redness, flaking, and even peeling days following the treatment. Since a mole consists of a build-up of skin cells, removing it will likely leave behind a scar. It takes about one week for the mole to heal after the laser.