Understanding laser treatment for acne scars
Fractional lasers treat a fraction of the skin surface at a time, creating columns of controlled thermal injury that stimulate collagen while untreated skin between them supports rapid healing. This is what makes resurfacing possible with days of downtime rather than weeks.
Fractional CO₂ is the more powerful option for textured, depressed scarring. Non-ablative options and MNRF may be preferred when a shorter recovery or a more cautious approach is appropriate for your skin type.
Laser is usually one component of a scar plan rather than the whole plan. Tethered scars are released first with subcision, and narrow ice-pick scars often need CROSS, with laser used to refine the surrounding texture.
This may suit you if
- Depressed acne scars with visible texture change
- Scarring that has plateaued with microneedling alone
- Patients who can accommodate about a week of visible healing
- Skin that is free of active inflammatory acne
What happens at the clinic
- 1
Suitability check
Skin type, scar type, recent sun exposure and medication history are reviewed. Priming creams may be prescribed before the session.
- 2
Numbing and protection
Topical anaesthetic is applied and eye protection is used throughout the session.
- 3
Laser pass
Energy settings are selected for your skin and adjusted by area. The session itself usually takes 20 to 40 minutes.
- 4
Healing support
Post-laser care is explained in writing — cooling, barrier repair, strict sun avoidance — and a review is scheduled.
Aftercare
- Follow the written post-laser routine exactly during the healing week
- Avoid sun, gym, steam and swimming until healing is complete
- Do not pick flaking skin
- Continue sunscreen rigorously for several weeks after the session
Possible side effects
- Redness, swelling, crusting and peeling during healing
- Post-inflammatory hyperpigmentation, a particular consideration in deeper skin tones
- Reactivation of cold sores in susceptible patients, which can be prevented with medication
- Rarely, infection or prolonged redness
