The acne has gone down, but red marks keep remaining.

In the past, I didn't worry too much about acne because it would subside after a few days. Lately, however, I'm concerned because the red marks linger for a long time even after the breakouts go away. Since there are several marks, especially on my cheeks, my skin feels messy overall. Makeup covers them somewhat, but they are still noticeable up close, and I'm also bothered by how my makeup cakes over time. I find myself constantly touching my face or checking it, but I suppose this habit isn't good, is it?

I am wondering if red marks will fade naturally if left alone, or if I need to receive separate treatment. For those who have received treatment for red marks at a dermatology clinic, what kind of procedure did you get? There seem to be various types of lasers, so I am not sure which treatment would be suitable. If the red marks tend to last a long time, would it be a good idea to see a doctor? I am also curious about how many sessions are typically required for treatment.