What dermatological procedures are effective for acne scars?

I am writing to inquire as I am considering dermatological treatment for acne scars.

After suffering from severe acne in the past, I am left with pitted scars and red marks on my cheeks and chin, which are not improving well with home care alone. I had hoped they would fade over time, but since there has been no significant change, I have begun considering laser treatment.

From what I have researched, laser treatments such as Fraxel and PicoFraxel are helpful for scar improvement. I am wondering if they can be performed without irritation on sensitive skin types like mine. I have also heard that the effectiveness varies significantly depending on the depth of the scar, so I would like to know which treatment would be more suitable for my case. I am curious about the typical number of treatment sessions required and how long the downtime—such as redness or peeling—lasts. I would also like to inquire if it is possible to return to daily life immediately afterward.