Your concern
Flaking skin
Flaking is a symptom, not a diagnosis: how it peels says what it is.
That skin flakes means the turnover of the most superficial layer is altered, but the cause can be very different — and how it peels is the first clue, because the type of scale is itself information.
Fine, powdery scales on dry skin point towards xerosis. Greasy, yellowish scales in the facial folds, beside the nose and on the scalp are typical of seborrhoeic dermatitis. Thick, silvery scales on well-defined plaques at the elbows, knees or scalp have an appearance of their own. Peeling in large sheets after redness suggests a resolving phase, as after sunburn. Ring-shaped scaling with an active edge suggests a mycosis.
The practical criterion is therefore single: flaking should be taken to a doctor, not interpreted at home, and above all not covered up. Applying a steroid to ring-shaped scaling masks it and makes it worse; using an antifungal on seborrhoeic dermatitis changes nothing. These are exactly the two commonest errors, and both come from treating the symptom before knowing what it is a symptom of.
Do not cover it with steroids before the visit
This is the most useful recommendation on this page, and it applies in the days before the appointment. A steroid cream reduces the redness of almost any scaling condition, and precisely for that reason it can erase the features that allow it to be recognised: an active edge, the demarcation of a plaque, the distribution. If a fungus lies underneath, the steroid also helps it spread. Arriving at the visit with the lesion as it is — or with a photograph taken before starting anything — shortens the pathway more than you would expect.
How it shows
- Fine, powdery scales on dry skin
- Greasy, yellowish scales in the facial folds and on the scalp
- Well-defined plaques with thick, pale scales
- Peeling in sheets after redness
- A scaling edge spreading in a ring
- Variable itching, sometimes absent
How we proceed
- 1Dermatological visit: type of scale, distribution, demarcation of lesions
- 2Distinction between the main causes, which do not share treatment
- 3Mycological testing where the pattern suggests a fungus
- 4Therapy based on the identified cause
- 5Follow-up to check the response and adjust if the picture does not fit
Available treatments
- Dermatology visit
- Mycological testing
- Therapy targeted at the cause
- Scheduled follow-up
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Frequently asked questions
Can I exfoliate it away?+
It depends on the cause, and that is precisely the point. On xerosis gentle exfoliation can help; on active dermatitis it worsens the inflammation; on a mycosis it does not affect the cause and can spread it to other sites. Since to the naked eye the forms resemble one another, exfoliating before knowing what you are dealing with is a gamble often lost.
Why does it only flake in winter?+
Cold, wind and dry air from heating draw water from the horny layer, and the skin barrier works less well: this is the typical seasonality of xerosis and the dermatitis associated with it. Seborrhoeic dermatitis also often has a seasonal pattern. Seasonality is therefore useful information to report at the visit, because it narrows the possibilities even before looking at the skin.
If it does not itch, is it less important?+
No, itching does not measure importance. Several scaling conditions cause little or no itching, and some lesions deserving attention are completely asymptomatic. A more useful criterion is this: localised scaling that persists at the same site for weeks and does not respond to usual measures should be examined regardless of how much it bothers you.
Related reading
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