How can face hyperpigmentation from chemical peels be corrected?

One of the keys to treating Post-inflammatory hyperpigmenation is prevention.  I usually start my patients on a product that has hydroquinone and kojic acid with retinol and glycolic acid.  This is started 4 - 6 weeks before the peel to settle down the melanocytes (the pigment producing cells).  All peels are irritating especially the deeper ones.  Once this type of post peel hyperpigmentation occurs it is a process of using the hydroquinone products in combination with a topical steroid (for inflammation).  You can expect this to take 8 - 10 weeks to resolve.  You must stay out of the sun, and use a sunscreen to avoid any further irritation to the skin.   Ask your physician to evaluate your skin and treat as needed.