becos i am old customer there, dr. give me a discounted price (he said), that's 1000 to 2000 per time (depends on area), but he said should be 1 time is enough.
however, i haven't tried still but book it on thursday, tell you how's it after that.
btw he said their will be red spot after treatment, but won't have black spot since he won't use very high degree of laser as my spot is not deep in color.