Discoloration due to acne scarring can typically be cleared up with an IPL laser or a Q-Switch Yag. This is a very common treatment that we prescribe after laser skin resurfacing if discoloration occurs.
This kind of post inflamatory hyperpigmentation usually shows up as a pink or brown discoloration.
It's kind of hard to say without seeing a picture which of the two lasers I mentioned above would best treat your condition ... but hopefully this advice will help.
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Posted to Need Help with Hyperpigmentation After Laser Skin Resurfacing and Microdermabrasion Treatments - Nashville, TN on 16 Jun 2010