No quick answer!: Avoiding ultraviolet exposure, use of hat, and sunscreens with high spf are the best ways to reduce further darkening. Spots already present can be lightened by use of 4% hydroquinones (prescription) or other medications that block the metabolism of melanocytes (pigment cells). Peels, ipl (intense pulsed light), and laser treatments (individual spots or entire face) can decrease and lighten spots!
Answered 12/25/2012
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