Is Subcision a good option to improve the appearance of my chicken pox scar? (Photo)

Hello, I was wondering if I could get advice on what kind of treatment would be good for my chicken pox scar. I have had one treatment of fractora 2 months ago but so far there is no improvment. I know I would need multiple treatments with fractora for it to work but im a little hesitant about it since I feel that it might not be enough for my scar since its very deep and big. Im interested to know if subcision would be something worth trying? Thank you!