When will crusting of the skin will start after fraxel repair?

I did fraxel repair for my acne scars 2 days ago. Exactly 22/11/2016. When I woke up today and when looked into the mirror. The scab was partially gone. After that in the afternoon I jus touched it and the remaing scab flakes off. I am really worried that it is really red and that part is little pitted now.. Its like a small vacant place there. I want to know that does this will improve? Before it was flat. It became a little hole like in my face. I am really worried.. Need ur help