Acne is a disorder of the pilosebaceous unit with four interacting drivers — not a hygiene problem. What grade you have, and whether it is acne at all, decides everything that follows.
Effective acne treatment in Singapore begins with what acne actually is, because the popular account of it is wrong. It is not caused by poor hygiene, and washing more often addresses none of the mechanisms involved.
Four factors interact within the pilosebaceous unit:
| Factor | What happens |
|---|---|
| Follicular hyperkeratinisation | Cells lining the follicle fail to shed normally and accumulate, obstructing the opening. |
| Sebum production | Androgen-driven. This is why acne often tracks with hormonal change and why it can persist well into adulthood. |
| Cutibacterium acnes | A commensal organism that proliferates in the obstructed, sebum-rich follicle. It is not an infection in the ordinary sense — the organism is normally present. |
| Inflammation | The immune response to the above. Inflammation is what turns a comedone into a papule, and what drives both scarring and post-inflammatory pigment change. |
A treatment addressing one of these while ignoring the others produces a partial result. This is the usual reason a regimen that seemed promising stops working.
“Acne is not a hygiene problem. Four things are happening in the follicle at once, and washing your face addresses none of them.”
Dr Sin YongOn what acne actually is
Acne is classified by what predominates. The grade is not a severity score for its own sake — it tells you which of the four factors is driving the presentation, and therefore what the plan has to address.
| Grade | What it describes |
|---|---|
| Comedonal | Open and closed comedones — blackheads and whiteheads — without significant inflammation. The problem here is follicular obstruction rather than inflammatory activity. |
| Papulopustular | Inflammatory papules and pustules alongside comedones. Inflammation has become the dominant feature, and post-inflammatory pigment change becomes a consideration. |
| Nodulocystic | Deep, tender nodules and cysts extending into the dermis. This is the presentation most associated with scarring, and the one where early medical management matters most. |
Cystic acne treatment is where early intervention matters most, because nodulocystic disease is the grade most strongly associated with permanent scarring. Waiting to see whether it settles is the decision that most often produces scarring that later needs revision.
A meaningful proportion of what presents as stubborn, treatment-resistant acne is not acne.
Malassezia folliculitis — widely called fungal acne — is driven by a yeast that is normally present on skin. It looks different once you know to look: uniform, monomorphic papules of similar size, frequently itchy, and often distributed across the chest, back and shoulders rather than the face — which is why patients seeking back acne treatment in Singapore are the group in whom it is most often overlooked.
The distinction matters practically. Because the mechanism is entirely different, it does not respond to conventional acne therapy, and some antibiotic regimens can make it worse by clearing the bacterial competition. Patients who have cycled through several acne treatments without response are exactly the group in whom this should be considered.
Medical management remains first-line. Topical and oral agents act on follicular keratinisation, on sebum production, on bacterial proliferation, or on more than one. Some are prescription-only, require assessment and monitoring, and carry side-effect profiles that are discussed before any course begins.
Laser acne treatment is directed at a different part of the picture: the inflammatory component. R2 Glow works on inflammatory activity within the skin rather than on pigment, and 少女光 uses a 675 nm wavelength directed at the inflammatory activity around the follicular unit as well as at the vascular component.
Neither replaces medical management. A laser does not act on androgen-driven sebum production or on follicular hyperkeratinisation, and a plan relying on light alone is treating one factor of four.
Two different things are left behind, and they are frequently conflated.
Post-inflammatory hyperpigmentation is pigment, not texture. Inflammation stimulates melanocytes, and in Fitzpatrick III to V skin — most of Singapore — this is often the more persistent problem. The surface is intact; the colour is not.
Scarring is structural: a permanent change in dermal architecture, presenting as ice-pick, boxcar or rolling morphologies. Covered in full on the acne scar treatment page.
The sequence matters. Active acne is generally brought under control before scar revision begins, because resurfacing skin that is still producing new lesions creates work that has to be repeated.
Response to acne treatment varies with grade, cause, skin type, hormonal factors and adherence. Suitability is assessed in person, and no single approach is appropriate for every presentation.
Treatment is planned individually, so cost follows the plan rather than a fixed list. Four things shape it:
A figure quoted before assessment would not reflect your presentation. Cost is set out clearly at consultation, before anything is agreed.
Acne is a disorder of the pilosebaceous unit involving four interacting factors: follicular hyperkeratinisation, which obstructs the follicle; androgen-driven sebum production; proliferation of Cutibacterium acnes within the obstructed follicle; and the inflammatory response to all three. It is not caused by poor hygiene, and washing more frequently does not address any of the four.
Acne is generally classified as comedonal, papulopustular or nodulocystic. Comedonal acne is primarily obstructive, with blackheads and whiteheads and little inflammation. Papulopustular acne is dominated by inflammatory papules and pustules. Nodulocystic acne involves deep nodules and cysts and carries the highest risk of scarring. The grade determines what the treatment plan needs to do.
Malassezia folliculitis, commonly called fungal acne, is not acne. It is driven by a yeast that is normally present on skin, and it presents as uniform, itchy, monomorphic papules, often on the chest, back and shoulders. Because the mechanism is different, it does not respond to conventional acne treatment and can worsen with some antibiotics. Distinguishing the two is part of assessment.
Laser approaches are directed at the inflammatory component of acne and are used alongside medical management rather than instead of it. A laser does not act on the hormonal drivers of sebum production or on follicular hyperkeratinisation. A plan that relies on light alone is treating one factor of four.
Nodulocystic acne is the presentation where early medical management matters most, because it is the grade most associated with permanent scarring. Treatment is medical first, and some of the agents used are prescription-only and require assessment, monitoring and discussion of side effects. Adjunctive approaches are considered alongside, not in place of, that.
They are separate problems addressed in sequence. Treating active acne reduces the ongoing formation of new scars, but it does not remodel scarring that has already formed. Scar revision is generally planned once active acne is under control, and is covered on the acne scar treatment page.
Post-inflammatory hyperpigmentation is common in Fitzpatrick III to V skin, where inflammation readily stimulates melanocytes. These marks are pigment rather than textural scarring, they behave differently, and in darker skin types they are often the more persistent problem. Assessment distinguishes pigment from true scarring because they respond to different approaches.
Acne on the back, chest and shoulders is common and is assessed in the same way as facial acne, with the additional consideration that fungal folliculitis presents more often in these areas. Surface area and accessibility affect how a plan is structured.
Cost depends on the grade identified at assessment, whether medical management alone or a combined approach is appropriate, the areas involved, and how the plan is staged. Because these differ considerably between patients, a figure quoted before assessment would not be meaningful. Pricing is set out clearly at consultation.
This varies with grade, cause and the approach taken, and honest expectation-setting is part of consultation. Acne is generally managed over a period rather than resolved in a single visit, and plans usually include a maintenance phase. What is realistic in your case is discussed at assessment rather than quoted in advance.
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