Oily Scalp and Flakes: Seborrheic Dermatitis Explained
Short answer: seborrheic dermatitis is a more inflamed form of dandruff. It causes greasy, yellowish scales with redness, and it often appears on the eyebrows, the sides of the nose, behind the ears and on the chest as well as the scalp. It's long-term but controllable. Antifungal shampoos and creams are the mainstay, and a dermatologist may add short courses of anti-inflammatory treatment.
What it is
Like dandruff, seborrheic dermatitis is linked to the Malassezia yeast and to the skin's reaction to it, in areas with many oil glands. It's not contagious, and it's not caused by poor hygiene.
It's common in:
- Adults aged roughly 20 to 50
- Babies (as "cradle cap")
- People under stress or lacking sleep
- People with certain conditions, such as Parkinson's disease or a weakened immune system
Signs
- Greasy, yellowish or white flakes on the scalp
- Redness under the flakes
- Itching or burning
- Scaling and redness in the eyebrows, sides of the nose, behind the ears, along the hairline, and sometimes in the beard or on the chest
- Flare-ups with stress, cold dry weather or illness
How it differs from look-alikes
| Condition | Key features |
|---|---|
| Dandruff | Flakes without much redness, on the scalp only |
| Seborrheic dermatitis | Greasy scale, redness, often on the face too |
| Psoriasis | Thicker, silvery, sharply defined plaques. Often on elbows and knees. May have nail changes |
| Contact dermatitis | Itchy, red reaction after a new product or hair dye |
| Tinea capitis | Scaly patches with broken hairs, mostly in children |
A dermatologist can usually tell the difference by examining you.
Treatment options
Over the counter
- Antifungal shampoos: ketoconazole, zinc pyrithione, selenium sulfide or ciclopirox. Use two to three times a week, with three to five minutes of contact time. See our ingredient comparison.
- Salicylic acid shampoo to loosen thick scale before an antifungal.
- Gentle facial cleansers for affected areas on the face.
From a dermatologist
- Antifungal creams for the face and ears.
- Short courses of mild steroid lotions or creams to calm flares. These are used carefully and for limited periods, especially on the face.
- Non-steroid anti-inflammatory creams in some cases.
- Occasionally oral antifungals for severe disease.
Don't use strong steroid creams on your face without a doctor's advice. Overuse can thin the skin and cause other problems.
Daily care
- Wash regularly, especially in humid weather and after sweating.
- Rotate antifungal shampoos if one seems to stop working.
- Wash your face gently with a mild cleanser, and keep the eyebrows and beard clean.
- Avoid heavy oils on affected areas.
- Manage stress and sleep, which are common triggers.
- Keep caps, helmets and pillowcases clean.
Beards and seborrheic dermatitis
Men often get flakes and redness under the beard. Wash the beard with an antifungal shampoo a couple of times a week, rinse well, and use a light, non-greasy moisturiser. Some men find their symptoms improve with a shorter beard.
Babies: cradle cap
Babies often get thick, yellowish scales on the scalp in the first months. It usually clears on its own. Gentle washing with baby shampoo and softening the scales with a little baby oil before washing can help. Ask your doctor before using any medicated product on a baby.
Does it cause hair loss?
Inflammation and scratching can increase shedding temporarily, but seborrheic dermatitis doesn't usually cause permanent hair loss. Controlling it often reduces the extra hair fall. See does dandruff cause hair fall?
Living with it
Seborrheic dermatitis tends to come and go for years. The goal is control: a maintenance routine you can stick to, and quick action at the start of a flare. Many people do well with an antifungal shampoo once or twice a week long term.
Quick answers
Is seborrheic dermatitis linked to diet? No specific food has been proven to cause it. Some people notice flares with stress or poor sleep more than with food.
Can I use the same shampoo on my face? Some people use ketoconazole shampoo briefly on the beard or eyebrows as a mask, then rinse. Ask your dermatologist first, and keep it out of your eyes.
Does sunlight help? Some people notice improvement in summer, while others flare with sweat. Don't rely on sun exposure, and protect your skin from burning.
See a dermatologist if…
- Redness and scaling affect your face, ears or chest
- Over-the-counter shampoos haven't helped after four weeks
- Your skin is very itchy, painful, cracked or oozing
- You're unsure whether it might be psoriasis
- You have a weakened immune system, or the problem appeared suddenly and severely
Bottom line
If you have an oily scalp with flakes and redness, especially on your face too, it may be seborrheic dermatitis. It's common, not contagious, and controllable with antifungal care and, when needed, a dermatologist's help.
General information only, not medical advice. See a dermatologist for hair loss or scalp conditions.
