Medically reviewed by Dr Sin Yong · Last reviewed · 5 min read
Published 13 October 2026 · Reviewed by Dr Sin Yong
This is the index page for acne and scars on drsinyong.com: every guide, treatment page, comparison, tool and article on the subject, grouped so you can find the one you need. The site treats acne and its scars as one pathway, acne control first, then flat marks, then texture, and the pages below follow that order. If you are new to the subject, start with acne treatment if you still break out, or with acne scar treatment Singapore if the acne has settled and the scars remain.
Active acne is controlled first; red and brown marks are treated next; texture and depth last. Resurfacing a face that is still breaking out treats scars that are still being made
Scar types
Depressed scars are graded as ice-pick, boxcar and rolling (Jacob 2001); raised keloid and hypertrophic scars are a separate category; flat marks are pigment or vessels, not scars
The sequence for mixed scarring
Release (subcision), support (Radiesse, TCA CROSS), then resurface (S3 Resurfacing Lift or FSX Laser by depth), with RF microneedling on the Secret DUO staged where the surface calls for it
Who and where
Every assessment and treatment by Dr Sin Yong himself on Orchard Road; isolated scars needing a punch technique are referred to a plastic surgery specialist
LookalikesFlat marks are often confused with scars: red or brown marks are vessels or pigment with normal texture and are not textural scars, while ice-pick, boxcar and rolling scars change the surface and show under angled light. acne-to-scar pathway.
Active acne
Scar work waits for acne to be controlled, so the pathway starts here. These pages grade acne by type and site and explain the ladder from skincare to prescription to clinic procedures.
Acne treatment Singapore — grading comedonal, inflammatory and cystic acne, and the ladder from skincare to prescription to clinic procedures
Hormonal acne in adult women — why chin and jawline breakouts cluster there, when to screen for PCOS, and which treatments doctors consider
Cystic acne and cortisone shots — medical treatment first; when a cortisone injection can settle one painful cyst and its risks, including skin dents
Ice-pick scars treatment — narrow, deep tracts that resurfacing alone barely changes; TCA CROSS into the floor, punch techniques referred
Boxcar scars treatment — shallow boxcars on FSX Laser, with a shorter recovery than S3; deep boxcars on the S3 Resurfacing Lift
Rolling scars treatment — a tether problem first: subcision, then Radiesse support, then Secret DUO or S3
Acne scar assessment — the seven things graded at consultation: scar map, stretch test, Goodman and Baron grade, skin type, acne activity, history, keloid tendency
Acne scar treatment downtime by method — what to expect after subcision, TCA CROSS, fractional CO2, RF microneedling and collagen stimulation, and when to call
Treatments for scars
Each page covers one tool or one question about choosing between tools. None of them is the whole plan; the main guide above shows how they are sequenced.
Acne scar laser treatment — FSX Laser, the S3 Resurfacing Lift and picosecond lasers by scar depth, the PIH question and what no laser can do
Acne scar resurfacing treatment — ablative fractional CO2, surface-directed FSX Laser and chemical resurfacing, and why resurfacing comes last
Subcision for acne scars — how a needle or cannula releases a tethered scar, who suits it and how it pairs with filler and laser
TCA CROSS — high-strength acid placed into each ice-pick floor; the PIH caution in darker skin
S3 Resurfacing Lift — multi-depth fractional CO2 on the DEKA Tetra Pro: point shots into pits, then fractional passes
Keloid vs hypertrophic scar — a keloid grows beyond the wound border, a hypertrophic scar stays within it, and why that decides treatment
How to use this index
If your acne is still active, start under Active acne, because every scar page assumes it has been controlled first; some degree of scarring follows inflammatory acne in most people seen in clinic series, and the risk rises with the depth and duration of inflammation (Layton 1994), so acne control is scar prevention. If the acne has settled, use the checker to sort your scars, read the page for your dominant scar type, then the main guide for how the types are sequenced together. The treatment pages explain one tool each and are not a menu to order from; the tool is assigned to the scar at assessment, which is described on the clinic-visit page. Everything on this site about acne and scars is written to the same rules: no fees, no outcome claims and no patient images, because Singapore’s healthcare advertising rules apply to every licensed clinic and because a scar plan is written for one face after one examination.
With the acne. Active acne means ongoing inflammation that keeps making new scars and pigment, so it is controlled first and the scar pages assume that has happened. Read acne treatment Singapore, then the acne-to-scar pathway, then the acne scar treatment guide once the skin is quiet.
Use the four-question checker to sort ice-pick, boxcar, rolling and raised scars from flat marks, then read the page for your dominant type. Most faces carry a mixture, so the main acne scar treatment guide, which shows how the types are sequenced together, is the page to read after that.
Singapore's healthcare advertising rules restrict price advertising and prohibit paired comparison images for licensable services, and those rules apply to every licensed clinic. This site publishes the fee factors instead, on the acne scar treatment cost page, and describes what is realistic for each scar type rather than promising an outcome.
References
Jacob CI, Dover JS, Kaminer MS. Acne scarring: a classification system and review of treatment options. J Am Acad Dermatol. 2001;45(1):109-117. doi:10.1067/mjd.2001.113451. source
Layton AM, Henderson CA, Cunliffe WJ. A clinical evaluation of acne scarring and its incidence. Clin Exp Dermatol. 1994;19(4):303-308. doi:10.1111/j.1365-2230.1994.tb01200.x. source
Orentreich DS, Orentreich N. Subcutaneous incisionless (subcision) surgery for the correction of depressed scars and wrinkles. Dermatol Surg. 1995;21(6):543-549. doi:10.1111/j.1524-4725.1995.tb00259.x. source
