Hyperpigmentation, acne scars, melasma.

I am 21 years old and I have oily and acne prone skin . I've always had acne issues due to which I've always suffered from scars and hyperpigmentation. I've consulted various dermatologists but ends up in the same issue after some time . I'm frequently getting new acne too. For hyperpigmentation and scars should I use aziderm 10% cream (I've used this before ) or should I go for Demelan cream? Which one is more affective ? I also have some discolouration around my cheekbone area . Some of my acne marks are old and dark while some are still red and new. Please let me know what will be a better option from the two and if there's a better alternative for it. I follow a proper skin care routine in the morning with moisturiser and spf 50 sunscreen. I only have this small issue . Attaching some images for reference . Hoping for a reply . Thank you.