I had a Halo Laser treatment 3 weeks ago by a Medical Esthetician in Vancouver BC. During the treatment she passed through my smile lines 4 times each side because my goal is to get rid of deep smile lines. 3 weeks after treatment, I now have a dark brown line running down both side of my smile lines. My ethnicity is Korean-Vietnamese. Can a Doctor please explain to me why this is happening? what is it? And how do i get rid of it? Please help...I hope it's not permanent!