SkinPen with PRP bruising caused Hemosiderin staining. What laser would help the best? (photos)

I had a skin pen with prp on 7/16/19 got 2 black eyes. It has been 8 weeks and I still have discoloration under both eyes. I have just been prescribed hydroquinone whitening cream but have read that it’s not enough to penetrate the staining. What is the best laser to help? And did the nurse inject wrong? She used a needle vs a cannula. I am devastated and never imaged permanent damage from a facial. Any help and advice welcomed! Also pictures don’t do the bruising justice. Makeup barely covers and I’ve spent hundreds on top brands and cover ups.