Should I do another C02 laser session or switch to another treatment? (photos)

I had CO2 laser done on my left temple four months ago. I received a total of two treatments so far with some improvement I was rated at 40% to 60%. I am undergoing treatment for post inflammatory hyperpigmentation at the moment but I wonder if I still want further improvement should I do more laser sessions or switch to another treatment and if so please let me know which ones?

