What do do after skin has been burned from PicoSure procedure? 6 days post op. (photo)

Hello and thank you for your question and providing a photo.  It would be unusual for PicoSure laser to "burn" the skin (we have not heard of such a case), there is a possibility that there is an underlying factor that contributed to this outcome, which would be properly determined by your provider.   If you decide to seek a second opinion be sure to do so from a Board Certified Dermatologist or Plastic Surgeon, but start with your provider as they are most familiar with your skin and treatment. 
All the best to you.

Need more information and an actual consult with a dermatologist to help you. Was this with the FOCUS lens or with the normal handpiece? If so how many shots used, energy settings, mm spot size, and how was it performed- dwell vs painting? What was the actual condition ? Melasma vs sun spots vs age spots - freckles etc...  Highly usual for this reaction if performed correctly for non-melamsa pigmentation. What was the post op instructions- SPF? HQ? In order to help you, I suggest you see a qualified Plastic surgeon or Laser Dermatologist. Wish you well, Dr Davin Lim. Brisbane. Australia.