I've had melasma caused by medication that suddenly appeared approximately 1 year and 1/2 ago. I've tried obagi nu derm, peels, microdermabrasion, Retin A, Vit C, sunscreen (always, still), but it would only slightly fade. I was reluctant to try fraxel after reading the negative reviews. I was numbed for an hour and the fraxel took about 20 minutes. I did both face and neck. It felt hot and...