Scarring After MiXto Laser?

I had mixto laser 4mth ago on my face neck and chest..I have scarring and you can still see the pattern marks on my neck collar bone and between my breast I had no scarring before..

My doc want to do higher powered bleaching and more laser..I am hesitate i also had my eye done and the left eye has a concaved incision line and more lid than the right he offer to re do it this all scares me and yes he is well know and board cert"ed what do I do I dont what to make him mad but I am not satisfied thing are worse than when i started..

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