Hello, there are effective treatments to minimize the appearance of acne scars like- microneedling, PRP therapy, CO2 laser, MNRF treatment, scar surgery. Sometimes more than one modality is combined to get best outcome. Visible results are normally seen after 3 to 4 sessions spaced 4 to 8 weeks apart. Treatment depends on factors such as skin type, acne scar type and lifestyle factors so the treatment is individualized.
Schedule appointment with a qualified dermatologist to know what is best suitable for your friend's skin.
Use sunscreen daily to protect skin from harmful sunrays. You may visit www.eternisclinic.com for details on acne scar treatment.