How can I treat PIH from BBL/HALO combo? I also have (had) mild melasma. (photos)

I received a HALO and BBL combination in October 2015 to treat a small amount of melasma under each eye. Approximately 3-4 weeks post treatment, my entire face turned brown, ruddy and with some pitted type "scarring". I was told by the overseeing plastic surgeon that this was the result of the nurse performing BBL (which is IPL) on my melasma skin. They put me on a 4% hydroquinone, TriLuma and performed one medium depth peel (which made it worse). Please tell me what, if more, can I be doing?

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