Can work great . . .: Or it can leave a scar! liquid nitrogen non-selectively freeze-kills tissue, hopefully only the abnormally-pigmented ones in your "sunspot" case. Lentigos, freckles, and similar sun-induced spots can be treated with liquid n2, laser, ipl, or other methods, but should not be excised (scar). However, all of the previous techniques can leave a scar if overzealously utilized. I would use a ktp laser!
Answered 11/29/2012
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Very successful: Will very likely result in a small scar. Laser also works, without the scarring.
Answered 12/3/2012
5.4k views
Yes: Usually very successful and rarely results in significant scarring. Certainly one can move on to trying other solutions if this is not successful.
Answered 10/24/2017
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