Acne scar treatment

What are the benefits of acne scar treatment? Aside from aesthetic beauty, are there any improvements in the health of the skin itself? Do the scars themselves act like a disease that hinders vitality and lowers the quality of skin health? I understand that Fraxel is a well-known treatment for acne scars; since it uses a thermal laser, doesn't it cause burns to skin that is already inflamed and congested? However, I would like to know the level of satisfaction after the procedure. Even if it stings a bit or requires managing side effects, wouldn't it allow me to enjoy a better life in terms of both appearance and health than living with pitted scars?

My acne keeps breaking out, so please tell me how long the effects last, how much it costs, and the features of this procedure. Since it seems to be a trendy treatment these days, I would like to know if there are any additional benefits to be gained from treating acne scars.