I would get a hydroquinone and vitamin C combination such as Obagi C clarifying serum twice daily, a retinol at night, and a broad spectrum sunscreen on top. You should see a dermatologist with expertise in treating skin of color and skin pigmentation as a combination of topical bleaching agents are going to be needed. I wish you the best of luck, Dr. Emer.
Hyperpigmented scars are quite common. In our office, we start patients on Plato's Dark Scar Corrector and Melarase PM cream twice daily to help reduce the pigmentation.
Raffy Karamanoukian MD FACS