Is 70 MJ considered too high of an energy level or dangerous for Fraxel Restore?

I am 7 weeks post Fraxel Restore treatment and am noticing some damage to my skin. My pores are larger and there are tiny lines forming between the pores creating a rough texture. My dermatologist treated me at 70 MJ with a treatment level 8 and did 8 passes. I am wondering if there is any way I was treated with too high of an energy depth which is why I am noticing damage to my skin. I am 27 years old, have oily skin and was being treated for enlarged pores and some minor acne scarring.