Hyperpigmentation can be frustrating after HALO, but know that it is usually not permanent. Do not attempt to use any over the counter skin lighteners. Contact your physician and let him know what you are experiencing. He/she may prescribe a course of Hydroquinone to lighten the skin. Also please be prudent about applying sunscreen with SPF 30 or retire, preferably containing zinc. This should be applied every few hours with in direct sunlight. It is important to continue protecting your skin from the sun for at least three months after your HALO procedure. Even with treating the hyper pigmentation, you will likely have excellent results and noticed an improvement in your skin overall. I hope this helps you some.Shyrlena~