In laser resurfacing, a laser beam destroys the outer layer of skin. As the wound heals, new skin forms. Less intense lasers cause less damage, but are also less effective
Pulsed light sources and radiofrequency devices help create new skin without damaging the outer layer of skin. After several treatments, acne scars may appear less noticeable.
Deabration.. This procedure involves removing the top layer of skin with a rapidly rotating wire brush. Surface scars may be completely removed, and deeper acne scars may appear less noticeable.
In some cases, surgery to remove deeply indented acne scars is an option. A minor procedure, called punch excision, cuts out individual acne scars. Stitches or a skin graft repairs the hole left at the scar site.
Injecting collagen or fat under the skin and into the acne scars can fill out or stretch the skin, making acne scars less noticeable. Results are temporary, so you'd need to repeat the injections periodically...consult dermatologist