This seems like an immature scar which is usually red in color and blanches when pressed upon. You must give time for this scar to get mature when it would turn white in color. Actually this has arisen because of a deep burn that has been incurred from the laser
application. Use moisturizers for the scar and also use padding below the scar. Also try not to place your body weight on that foot for extended periods of time till the scar becomes mature.