Please recommend effective dermatological procedures for managing acne marks in late autumn.

Most of the acne I had in the past has subsided, but when I look closely at my skin, there are quite a few red marks and brown traces left behind. Even when I try to cover them up with makeup, my skin looks patchy, and they stand out even more under lighting, so it bothers me.

I have been consistently using soothing products and whitening cosmetics at home, but I don't feel like there is as much improvement as I expected. So, I am considering getting a dermatological procedure this time. I am wondering if treatments like laser toning or pico laser therapy are helpful for acne marks. Are the treatment methods different for red marks and brown pigmented marks?

I am looking into treatments because I think it would be a good time from late autumn to winter since UV rays are lower than in summer. I would like a procedure that allows for consistent care without causing skin irritation or requiring a long recovery period. For those who have actually received acne scar treatment, which procedures were effective? Please also let me know how many sessions are typically required to expect noticeable changes.