You affirm my belief that microneedling gives only minor improvements to acne scarring. PIH is rare after this procedure but occurs. It can be treated with retin a and hydroquinone. I feel that you would benefit from TCA Cross for all the ice pick scarring, and possibly RFM. Please see an acne scar specialist. PRP might improve healing as well. I also use subcision on most of my acne scar patients.
Thanks for your question and posting a picture. I'm sorry that you aren't seeing the results you anticipated. Microneedling results are often over-promised and not predictable. I don't understand how scuffing up the surface of the skin will help with scar tissue below the surface. Unfortunately, post inflammatory hyperpigmentation is a frequent complication of microneedling. I would suggest contacting an acne scar expert. Best of luck