K.
This works for keloids, so it may work for scars too: all you have to do is dissolve an aspirin tablet in some water to make a paste. Put the paste onto the scar and keep it wet. Do this every day for a few minutes (10-15?) and it will go away in a few weeks. The aspirin is a mild acid, so it dissolves the tissue away. I had a keloid (lump of scar tissue) on my ear from a piercing gone awry a few years ago and this method worked great. Obviously if you have any skin irritation, stop.