How to Treat Melasma After Fraxel Dual Laser 1927?

Unfortunately a paradox does exist that treatments which are designed to improve pigmentation, especially in dark-skinned individuals, may increase the pigmentation.  Melasma is a difficult procedure to treat in general. The Fraxel Dual you had, the 1927nm wavelength laser, might have caused better results if you had been pretreated with a lightening cream or if the energy levels were different. It might be worth consulting another laser specialist.  Mild chemical peels and strong lightening creams such as prescription Tri-Luma with close followup with a dermatologist can make this so much better for some patients.  Unfortunately, some patients react with the hydroquinone and get darker! See an experienced dermatologist.

Melasma is always difficult to treat, especially if you have a dark complexion.  Use SPF 60 every day and re-apply it if you are outdoors.  Foundation make-up will also give your skin some sun protection.  See your dermatologist for a prescription of hydroquinone, tretinoin cream and a mild cortisone cream which will help fade the melasma.  You may be a candidate for light chemical peels as long as you stay out of the sun.

Many MDs will treat post-fraxel hyperpigmentation with broad spectrum daily sunblock, hydroquinone 4% gel and one percent hydrocortisone & perhaps a retinoid.  Melasma is very difficult to treat.  I would be optimistic and go back to a dermatologist and slowly try to lighten them up with topicals. If you no longer trust the Fraxel, sometimes regular, light, Beta-Lift peels can be helpful as well.  Avoid the sun and always wear broad-spectrum SPF. If you drive a lot, put UV guards on your car windows. If you are light skinned, sometimes TCA localised peels can help.  

So go back to your dermatologist and come up with a plan. The Fraxel 1550 often has a specific melasma setting that works well if you use a bleaching agent for a month prior to using the melasma 1550 setting on the Fraxel. There is always hope & always a way for some improvement. Sometimes it helps to give the skin a long rest before trying something new. Best of luck to you.