How do you manage facial pigmentation left over from squeezing acne?

When I had acne, I should have just held it in and not touched it, but I couldn't hold it in and squeezed it out, and now I have dark pigmentation on my face and it's so frustrating. ㅠㅠ The acne has gone away, but these scars don't seem to be going away even after several months.

Even if I cover it with concealer, it looks dull over time, and I think my skin looks dirty overall because of the pigmentation on my face. I've been diligently applying things like whitening ampoules, but it doesn't seem to have much effect on the pigmentation that already exists, so I'm thinking about getting a treatment.

Will laser toning completely erase these facial pigmentations? Or would it be better to consistently apply scar cream? I want to get rid of my facial pigmentation and have clear skin. Please recommend a method that has proven effective!