The redness on your face may have a different name than you think. Rosacea, perioral dermatitis, and seborrheic dermatitis look similar from a distance — but they appear in different places, feel different, and need different care. Here, you’ll learn how to tell them apart.
Why are these three skin conditions so hard to tell apart?
The difference between rosacea, perioral dermatitis, and seborrheic dermatitis lies in their location, how they feel, and the skin’s surface. Rosacea causes persistent redness and flushing in the middle of the face. Perioral dermatitis causes small red bumps around the mouth. Seborrheic dermatitis causes greasy, yellowish flakes around the eyebrows and nostrils.
All three are inflammatory conditions. This means the skin’s immune system is on high alert and sends extra blood to the area — hence the redness. But the underlying mechanisms are different, so the conditions also respond differently to skincare. In fact, the Medical Handbook on sundhed.dk notes that perioral dermatitis can look so much like rosacea that visible blood vessels are often what distinguishes them.
Let’s take them one at a time — focusing on what you can see and feel for yourself.
Rosacea — persistent redness in the middle of the face
What it looks like: Rosacea typically appears symmetrically on the cheeks, nose, forehead, and chin — what is known as the central area of the face. The redness is persistent or occurs in distinct flushes, when the face suddenly glows after heat, sun, alcohol, or spicy food. Many people also develop small visible blood vessels (telangiectasia — dilated small vessels that appear as fine red lines) and occasional small red bumps. The skin does not usually flake.
How it feels: Rosacea tends to burn and tingle more than it itches. Many describe a warmth in the skin, as if their cheeks are "glowing from within," and the skin reacts easily to creams, wind, and temperature changes. You can read more about subtypes and causes in rosacea.blog's detailed guide to rosacea.
Who gets it: Most often adults aged 30 to 50 with fair skin, and women are affected more often than men.
Perioral dermatitis — small bumps around the mouth
What it looks like: Perioral dermatitis (a rash around the mouth) appears as clusters of small red bumps, often with slightly flaky skin between them. The rash occurs around the mouth, beside the nostrils, and sometimes around the eyes. A classic sign: a narrow, pale area right next to the lip line is usually unaffected. Unlike rosacea, there are no visible blood vessels.
How it feels: The skin feels tight and burns mildly, and many people experience a stinging sensation when applying cream. Itching is usually mild. The condition typically flares up after using strong corticosteroid creams, heavy, greasy creams, or too many products layered on top of one another.
Who it affects: Especially women aged 20 to 45. It is so often compared with rosacea that rosacea.blog has dedicated an entire article to the difference between perioral dermatitis and rosacea.
Seborrheic dermatitis — greasy, yellowish flakes
What it looks like: Seborrheic dermatitis — commonly known as seborrheic eczema — causes redness covered with greasy, yellowish flakes. It appears where the skin produces the most sebum: in the eyebrows, along the folds beside the nostrils, on the scalp (dandruff), along the hairline and behind the ears. The flakes are the defining feature — neither rosacea nor perioral dermatitis flakes in the same greasy way.
How it feels: Seborrheic eczema itches — often more than it burns. The skin can feel greasy and irritated at the same time, and the condition typically gets worse in winter and during stressful periods. The cause is thought to be an overreaction to Malassezia, a yeast that naturally lives on everyone’s skin.
Who it affects: All ages, and men slightly more often than women.
How to tell them apart — an overview in 30 seconds
| Rosacea | Perioral dermatitis | Seborrheic dermatitis | |
|---|---|---|---|
| Location | Cheeks, nose, forehead, chin | Around the mouth, nose and sometimes eyes | Eyebrows, folds beside the nose, scalp, behind the ears |
| Appearance | Redness, flushing, visible small blood vessels, sometimes bumps | Clusters of small red bumps, pale area around the lips | Redness with greasy, yellowish flakes |
| Sensation | Burns, tingles, feels hot | Feels tight, stings when applying cream | Itches, feels greasy |
| Flaking | Rarely | Mild flaking between the bumps | Yes — visible and greasy |
| Typical triggers | Sun, heat, alcohol, spicy food | Strong corticosteroid creams, heavy creams | Stress, cold, winter |
Fact box: Rosacea affects around 5% of the adult population, and perioral dermatitis is most common among women aged 20-45. Seborrheic dermatitis is even more widespread — most adults experience a mild form of it as dandruff on the scalp at some point in their lives.
Calm for irritated skin
CØLM Redness Relieving Cream combines zinc oxide and sulfur in one soothing night cream for redness and reactive skin.
See CØLM Redness Relieving Cream →That’s why CØLM Redness Relieving Cream can help with all three
Although the three conditions are different, they share one common denominator: inflammation and redness in an imbalanced skin barrier. That is exactly what CØLM Redness Relieving Cream is formulated for.
The cream is based on two well-documented active ingredients. Zinc oxide has a soothing effect and helps reduce visible redness and irritation — it forms a mild, protective layer on the skin. Sulfur has been used in skincare for over a hundred years and has a documented effect against both Demodex mites (which play a role in rosacea and perioral dermatitis) and the Malassezia yeast, which is involved in seborrheic dermatitis. In other words, the combination targets something central to all three conditions.
CØLM is a night cream and should only be used in the evening on cleansed skin. At night, your skin works to repair itself — and the active ingredients can work undisturbed, without sun, sweat, or makeup. If you're unsure how CØLM differs from our classic cream, read about the difference between CØLM and ZZ-Creme.
How to care for your skin while you figure it out
Whichever of the three conditions best matches your skin, the same basic principles apply. Reactive skin needs fewer products, not more.
Morning: Cleanse with a mild, gentle cleanser such as Mild Foaming Facial Cleanser with Osmolyte — it protects your skin's moisture balance instead of stressing it. Finish with sun protection, especially if rosacea seems more likely, as sun exposure is its most common trigger.
Evening: Cleanse again, then apply a thin layer of CØLM Redness Relieving Cream to the areas that are red and irritated. Its lightweight texture also makes it suitable for skin that doesn't tolerate heavy, rich creams — which is important with perioral dermatitis.
In the meantime: Avoid scrubs, strong acids, and fragranced products until your skin calms down. And resist the temptation to cover the redness with more layers of products — this often prolongs the problem. If you're unsure what might be causing your redness, we also have a guide to the 6 most common causes of facial redness.
When should you seek medical attention?
Good skincare can ease symptoms, but some situations require medical attention. See a doctor if the rash spreads quickly or is painful, if you develop bumps or redness around your eyes, if you have used a topical steroid cream on your face and the rash flares up when you stop, or if the redness affects your eyes, causing dryness and stinging (this may be ocular rosacea). The same applies if nothing has helped after 6-8 weeks of consistent, gentle care. A dermatologist can make a definitive diagnosis — and the sooner, the better.
FAQ — Frequently Asked Questions
How can I tell if I have rosacea or perioral dermatitis?
Look at the location and the blood vessels. Rosacea occurs in the center of the face — cheeks, nose, forehead — and often causes visible small blood vessels and flushing. Perioral dermatitis occurs around the mouth in clusters of small bumps, typically with a pale zone right next to the lips, and no visible blood vessels.
Can you have several of these conditions at the same time?
Yes. Rosacea and seborrheic dermatitis often occur together because both are common and affect the face. If you have persistent redness on your cheeks as well as greasy scales in your eyebrows, you may well have two conditions at once. A dermatologist can distinguish between them.
Does rosacea itch?
Rarely. Rosacea burns, tingles, and feels hot more than it itches. Significant itching points instead to seborrheic dermatitis or another form of eczema. How your skin feels is therefore one of the best clues for telling them apart.
Does perioral dermatitis go away on its own?
It can subside over weeks to months if you remove what triggered it — typically corticosteroid cream or heavy products — and simplify your routine. But without changes, it often persists or returns. Gentle, minimal care is the way forward.
What is the difference between seborrheic dermatitis and dandruff eczema?
None — they are two names for the same thing. Seborrheic dermatitis is the medical term, while dandruff eczema is the common Danish term. Mild seborrheic dermatitis on the scalp is what most people know as ordinary dandruff.
Can CØLM Redness Relieving Cream be used for all three conditions?
Yes. The combination of zinc oxide and sulfur is relevant for rosacea, perioral dermatitis, and seborrheic dermatitis because it calms redness and affects both Demodex mites and Malassezia yeast. The cream is used only in the evening on cleansed skin.
Whatever the name of your redness
Zinc oxide and sulfur work overnight while your skin repairs itself. Try CØLM — with a skin improvement guarantee.
Try CØLM tonight →References
- Lægehåndbogen, sundhed.dk — Perioral dermatitis. Sundhed.dk.
- Tucker D, Masood S — Seborrheic Dermatitis. StatPearls, NCBI Bookshelf.
- British Association of Dermatologists — Seborrhoeic Dermatitis — Patient Information Leaflet. BAD.
- Searle T, et al. — Periorificial dermatitis: Pathophysiology, diagnosis, and management (2025). Journal of the American Academy of Dermatology.
- DermNet — Rosacea. DermNet NZ.
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