Over treated with laser. What are my options?

Hi, I did a laser treatment with total FX laser 15 mounts ago. My skin is still a little bit pink and with brown spots. I had another plastic surgeon look at it and he told me that he had probably used too high frequency. Is it possible that my skin never go back to normal? Can my skin get older faster like sun damage skin? I want to do a fat transfer to cheeks, but wonder if that can stop/ disturb the healing of the skin?