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Dark marks after spots
Post-inflammatory hyperpigmentation: it is not a scar, and that changes everything.
The spot passes and a mark remains: brown, pink or purplish, flat, in the same place. It is the commonest consequence of acne and the one that troubles people longest, because it outlives the lesion that produced it by weeks or months.
The first thing to clarify is the difference between a mark and a scar, because it determines what to expect. A mark is a change in colour on a smooth surface: run a finger over it and you feel nothing, and over time it tends to fade. A scar is a change in relief — a depression or a thickening — and does not lighten on its own because the problem is not pigment. They are distinguished by touch and by raking light, and it is the first thing looked at during the visit.
Two practical points follow, worth more than any product. First: the sun fixes and darkens these marks, so daily sun protection is not generic advice but the main treatment. Second, the one almost nobody considers: while new lesions keep appearing, new marks keep forming. Treating marks while acne is still active means chasing your tail: controlling the lesions comes first, always.
First the lesions are settled, then the marks are treated
This is the order that makes the difference between a pathway that works and months of frustration. Every new inflammatory lesion will produce a new mark: while the acne is active, any lightening treatment is working against continuous production. The correct sequence is to control the lesions first, then address the pigmentary aftermath — with sun protection active from day one, because that is needed in both phases. Skipping the first step is why many people conclude that «products for marks do not work».
How it shows
- Brown, pink or purplish marks where the lesions were
- A smooth surface to the touch, with no depressions or raised areas
- Persistence for weeks or months after healing
- Darkening after sun exposure
- Longer duration and greater intensity in darker skin types
- Appearance at the same sites as the inflammatory lesions
How we proceed
- 1Dermatological visit: distinction between marks and scarring
- 2Assessment of acne activity, which determines the order of the pathway
- 3Control of active lesions as the first objective
- 4Daily sun protection, part of the treatment and not an accessory
- 5Treatment of pigmentary aftermath once the picture is stable
Available treatments
- Dermatology visit
- Control of active lesions
- Chemical peel
- Daily sun protection
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Frequently asked questions
How do I know whether it is a mark or a scar?+
By touch and by light. Run a finger over the area: if the surface is smooth and you feel only a change in colour, it is a mark and time is on your side. If you feel a depression or a raised area, or if shadows appear under a side light, then there is a scarring component, which does not lighten on its own and needs a different approach. The two often coexist, which is one reason assessment at a visit changes expectations.
How long do they take to fade?+
Weeks for the most superficial, several months for the more intense, and darker skin types usually take longer. The variable that matters most is not the product used but sun exposure: without protection the marks darken again every summer and the count restarts. This is why sun protection is the part of treatment that gives the most visible long-term results.
Are red marks different from brown ones?+
Yes. Pink or purplish ones mainly reflect a residual vascular component and tend to resolve faster, often on their own. Brown ones are deposited pigment, take longer and are more sun-sensitive. The distinction matters because it indicates how long to wait before considering specific treatment: on a recent red mark, often the right thing is to do nothing and protect it.
Related reading
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