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Seborrheic Dermatitis

Seborrheic dermatitis, often referred to as skin dandruff, is a frustrating chronic scaly red rash that pops up on your face and scalp unpredictably. Anyone with seborrhea knows how annoying this facial rash can be. Dr. Cynthia Bailey has had it for years and has more than her share of experience living with it "front and center" - nothing like seeing a dermatologist who looks like she needs a dermatologist!

What Is Seborrheic Dermatitis?

Facial Distribution of Seborrheic DermatitisAlso called dandruff, it is a rash of unknown cause. It typically causes redness and scale on the mid-face along the eyebrows, sides, and creases of the nose that will run down the sides of the mouth to the chin. On the face, the rash looks like dry skin, though dryness is not the problem.

Where on your skin do you see seborrheic dermatitis? 

Seborrhea often involves the scalp,where it is more commonly called dandruff. Here the scalp may itch and have white flakes and people often think they have “dry scalp” but again, the problem is a rash not skin dryness. Redness and flakes can become severe. Itchy pimples can develop too. In babies, cradle cap is seborrheic dermatitis.

Ears are commonly involved in seborrhea. Here the scale is crusty and can weep. Areas most prone include the crease behind the ears and the skin around and in the ear canal.

The lash line can suffer seborrhea too. Here there is itchy, red, swollen skin and crusty scale right along the lash line of the eyes.

Seborrheic dermatitis can also cause a rash on the body. Sometimes there is redness and itching in the skin folds of the armpits and groin. At other times the upper back and chest have scale and redness.

What Causes Seborrhea?

The cause of seborrheic dermatitis is unknown.

We do know that a normal skin yeast called pityrosporum is often seen growing abundantly in sites of skin with active seborrhea. That is why one of the main ways to treat and control seborrhea is to discourage the growth of this organism.

Also, the rash uses the biochemical resources of inflammation to make redness and scale, which is why doctors often prescribe topical cortisone creams to fight these inflammatory resources. Cortisone creams have side effects so it is not recommended to self-treat with this medicine.

Over the years, Dr. Bailey's patients have noticed that when they eat more junk foods, bad fats, refined carbohydrates, gluten-containing foods, and sugar, their seborrhea becomes more active.

People who are not able to bath or wash their hair or skin often will have worse seborrheic dermatitis. Stress and the winter months seem to worsen seborrhea too.  People with central nervous system disorders such as Parkinson’s also have more active seborrheic dermatitis. The link between seborrhea and any of these observations is not known.

What Treatment Can You Use for Your Seborrheic Dermatitis?

Below are links to treatment methods Dr. Bailey uses at her practice. Review this information, to learn how you may be able to treat your seborrheic dermatitis.

Treatment for scaly, itchy, "dry scalp" from dandruff

Treatment for crusty ears from dandruff (seborrheic dermatitis)

Treatment for "dry" redness and scale in the eyebrows, on the nose, and on the face from seborrhea

Treatment for eyelash line redness and scale from seborrhea (seborrheic blepharitis)

Treatment for seborrheic dermatitis of the back, chest and skin folds