Pixel Fractional Laser Recovery After Deep Setting?

I had two pixel treatments on my face with 7 days down time recovery, however after my third pixel treatment which was much more deeper for wrinkles on each side of me face i am still red after three weeks. Is this normal? Also Unfortunately a little square came off after i washed my face and now that area is brown. When it came off it did not bleed it just oozed and crusted up again. Will this area of what i think is scaring ever heal and how long till the redness goes? how can i help healing?

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