Published 11 September 2026 · Reviewed by Dr Sin Yong
Every week someone sits in my consultation room asking for scar treatment while their acne is still breaking out — and every week I decline, at least for now. It is worth explaining properly why, because from the patient's side it can feel like being turned away from the thing they actually came for.
They arrive well researched. They know their scar types, they have read about resurfacing, and they are ready to start. The only problem is visible from across the desk: there are active lesions on the same cheeks they want treated. Some are frustrated when I point this out — usually because a previous conversation somewhere else skipped it entirely.
Declining to resurface that skin is not gatekeeping and it is not caution for its own sake. It follows directly from what acne is and what scar treatment does — and once those two mechanisms are laid side by side, the sequence stops looking like an obstacle and starts looking obvious.
It is also, I should say plainly, the less profitable answer. A clinic is free to sell scar packages to anyone who asks. Explaining why the scar work must wait, and starting with the unglamorous business of acne control instead, earns less and takes longer. I hold the line anyway, because the alternative is treating people badly in a way they will only discover later.
Acne is a disease of the pilosebaceous unit — the follicle and its attached oil gland. It begins as a comedone, a blocked follicle, and becomes an inflammatory lesion when the follicle wall inflames or ruptures: a papule, a pustule, or at its deepest, a nodule.
The scarring is not caused by the spot you can see. It is caused by the inflammation underneath it — and the deeper and longer that inflammation runs, the more dermal damage it does. When the dermis is damaged, it repairs as scar tissue. The same inflammation also drives post-inflammatory hyperpigmentation, the flat brown marks that most patients call scars but that are actually pigment, on a different timeline with different treatment.
Follow that mechanism one step further and the conclusion writes itself. While acne is active, the machine that manufactures scars is still switched on. Treat the existing scars today and the disease will supply new ones next month — behind the treatment, into freshly resurfaced skin. You are renovating a house while the fire is still burning in the kitchen.
This is what I mean when I say resurfacing active skin is treating a moving target. The target is not just moving; it is growing.
“Getting the acne controlled first isn't a delay. It's the sequence.”
Dr Sin YongOn patients asking for scar work early
There is a second, more immediate problem: resurfacing is controlled injury. It works by creating precise micro-wounds that the skin repairs with new collagen. Doing that across skin that is actively inflamed adds injury to inflammation — on skin types that mark easily.
Most of the skin I treat in Singapore is Fitzpatrick III to V, where inflammation leaves pigment readily. Resurfacing over active acne in this population risks a triple result: aggravated breakouts, new pigment on top of old, and scar treatment that cannot be judged because the surface never stabilised. International management guidelines treat active inflammatory acne as a reason to defer resurfacing, and the logic above is why.
So the honest framing is this: acne control is not the queue you wait in before real treatment starts. It is the first stage of the scar plan. Getting the disease quiet protects the dermis from new damage, lets the post-inflammatory marks begin to fade on their own, and hands the scar work a stable surface on which anything done can actually last.
And a practical consolation — the assessment does not wait. Acne is graded, the drivers are addressed, and the scars can be mapped and classified while control is underway, so the scar plan is ready the day the skin is.
The threshold I use is stability, judged on examination: no new inflammatory lesions appearing, existing ones resolved, and the skin behaving consistently rather than cycling through flares. That is an individual finding, not a fixed date on a calendar — which is why I will not quote a waiting period on a website.
Once there, the picture is usually clearer than expected — some of what looked like scarring six months earlier has faded with the inflammation, because it was pigment all along. What remains is true textural scarring, and that is mapped scar by scar: icepick, boxcar, rolling, tethered, each with its own answer, as I set out in the guide to acne scar types.
From that map comes a staged plan through acne scar treatment — release where scars are tethered, resurfacing where the problem is surface, combined and sequenced rather than bundled into one visit. Maintenance of acne control continues alongside, because a relapse mid-plan puts us back at the start of this article.
Patients who follow this sequence are not slower to finish. They are the ones whose scar treatment only has to be done once.
People deciding between clinics often look for photographic proof, so the absence here deserves a direct explanation.
Under Singapore's Healthcare Services Act, before-and-after imagery in advertising for licensable healthcare services is prohibited. No consent form or disclaimer creates an exemption, and after-only images fall under the same rule. The prohibition applies identically to every licensed clinic in Singapore — a site displaying such images is not demonstrating better results, only weaker compliance.
What can happen instead is an examination of your own skin, in person, where active lesions, pigment and true scarring can be told apart under proper lighting.
Prices for licensable healthcare services cannot be advertised in Singapore, including as ranges or "from" figures. What can be set out is what the cost actually depends on.
The factors are the severity and extent of the active acne, what the assessment finds once the skin is stable — how much of the damage is pigment and how much is structural scarring — whether single or combined methods are indicated for each, and how the two phases of the plan are staged over time. A short course of control followed by limited scar work and a long combined reconstruction are not comparable undertakings.
Fees for each stage are set out at consultation, as the plan takes shape and there is something specific to cost.
If your acne is still active, the most valuable scar treatment available to you is acne control — it is the only intervention that stops new scars being manufactured while everything else is discussed. The sequence is control, stability, map, then scar work. Run in that order, each step makes the next one better; run backwards, each step undermines the last.
Dr Sin Yong — MBBS (NUS), MRCS (Edinburgh), MSc Aesthetic Medicine (London), MSc Practical Dermatology (Cardiff) — assesses acne and scarring together at Orchard Road, and will tell you plainly which phase your skin is in and what belongs in it.
Structural scar treatment such as resurfacing is generally deferred while acne is active, for two reasons. Active acne means the inflammation that creates scars is still running, so new scars form behind any treatment done. And resurfacing is controlled injury — performing it over inflamed skin adds insult to inflammation and, in darker skin types, readily leaves pigment. The sequence is acne control first, then scar treatment on stable skin. Assessment of both can happen at the same consultation.
Because acne scarring is caused by the inflammation of active acne — the deeper and longer a lesion is inflamed, the more dermal damage it leaves behind. While the disease is active, the mechanism producing scars is still switched on, so treating existing scars is renovating a surface the condition keeps damaging. Controlling the acne first protects the dermis from new injury and gives scar treatment a stable base. It is the first stage of the scar plan, not a queue in front of it.
Run a fingertip across them. Post-inflammatory hyperpigmentation is flat — a brown or red mark with no change in texture — and tends to fade over months once the acne is controlled. A true scar has a texture you can feel: a pit, a depression, or a raised area, which does not fade on its own. Many people find that much of what they assumed was scarring resolves with the inflammation, because it was pigment all along. The distinction is confirmed on examination under directed lighting.
The threshold is stability rather than a fixed interval: no new inflammatory lesions appearing, existing lesions resolved, and the skin behaving consistently rather than flaring. That point varies between individuals and is judged on examination. Waiting for stability also lets post-inflammatory pigment fade, so the scar map reflects true structural scarring rather than temporary marks. The scar plan itself can be prepared during the control phase, ready to begin once the skin is quiet.
No. Acne treatment stops new damage; it does not repair structural scars that already exist. What often improves during the control phase is the flat brown or red marks — post-inflammatory pigmentation — which fade as the inflammation settles. True textural scars, such as icepick, boxcar and rolling scars, are changes in the dermis and need their own treatment, planned scar by scar once the skin is stable.
Not necessarily. Scarring follows inflammation that reaches deep enough into the dermis for long enough — which is why deep nodular acne, picked or squeezed lesions, and long-untreated inflammation carry the greatest scar risk, while superficial comedonal acne often leaves none. The practical implication is that earlier control of inflammatory acne is the intervention that most reduces future scarring. Individual risk is assessed on examination, not predicted from a description.
Resurfacing over actively inflamed acne is avoided in standard practice. Resurfacing creates controlled micro-injury for the skin to repair; laying that over uncontrolled inflammation aggravates the skin, risks spreading inflammation, and in Fitzpatrick III to V skin readily produces post-inflammatory hyperpigmentation. It also wastes the treatment, since the disease continues to create new lesions and new marks behind it. Quiet the acne first; resurface stable skin.
Yes, and they should be. Grading the acne, identifying its drivers, and mapping the existing scars are all part of one examination — the sequence only affects when each treatment starts, not when the thinking happens. Assessing both together means the acne control plan begins immediately and the scar plan is ready the day the skin becomes stable, with nothing lost to waiting.
Zaenglein AL et al. Guidelines of care for the management of acne vulgaris. Journal of the American Academy of Dermatology 2016;74(5):945–973. source
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