Can Fraxel Repair Partially Repigment Hypopigmented Scars?

what if combined w/ hydroquinone? I have some hypo-pigmented scars that I am having a fraxel repair on. I read that some doctors seen hypo-pigmented scars partly repigment after repair. However, my doctor recommended pre-treating my skin with hydroquinone because of my olive skin color. Will this prevent my skin from repigmenting?

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