Once treated with the Cutera Excel HR laser system, destroyed veins will not return. The paths your blood takes beneath your skin aren’t set in stone. That blood will find another, healthier way to get where it needs to go. Unfortunately, laser vein treatments can’t prevent the emergence of new spider veins or varicose veins. For that, you’ll need to maintain a healthy body weight and active lifestyle (among other recommended lifestyle changes recommended by licensed physicians).