• Eczema commonly occurs on the insides of elbows, behind the knees, and on hands, but it can also pop up on the scalp.
  • Eczema on the scalp is called "seborrhoeic dermatitis" and it can leave skin dry, itchy, and flakey.
  • A shampoo designed for dry skin can help alleviate irritation.

Typically we think of eczema affecting the hands, the insides of the elbows, and behind the knees, but another common area the skin condition is present in is the scalp. This is medically known as seborrhoeic dermatitis. "Dermatitis, literally meaning 'inflammation of the skin', is another word for eczema," dermatologist Sharon Belmo, MD, told POPSUGAR. Seborrhoeic dermatitis is a common form of eczema affecting areas that are rich in sebaceous (oil-producing) glands, such as the face and scalp, and it can affect any age. In babies, cradle cap is actually a form of seborrhoeic dermatitis.

Eczema is a common condition that can make the skin become "red [or sometimes darker brown in skin of color], sore, itchy, dry, and flaky," said Dr. Belmo. When it comes to seborrhoeic dermatitis in teenagers and adults, the condition can cause excessive dandruff, redness, and itching of the scalp. "It can also cause redness, dryness, and flaking on the face, particularly on the eyebrows and around the nose and ears. In darker skin tones, it can sometimes cause lightening of the skin," Dr. Belmo added. The exact cause of seborrhoeic dermatitis is not known, but she explained that it might be due to the skin overreacting to an overgrowth of a common type of yeast on the skin called malassezia.

All of these factors can make it confusing and tricky when you have seborrhoeic dermatitis and you're buying hair care, and more specifically shampoo. Having said that, not everyone with scalp eczema needs a specific shampoo; you only need one if your condition is itchy or flaky, or, of course, if a doctor has recommended one, explained Amélie Seghers, MD, a dermatologist at the Cadogan Clinic and author of Eczema: How to Ditch the Itch.

"Look out for shampoos with ingredients such as zinc pyrithione, selenium sulphide, or coal tar (side note: coal tar has a strong smell), as these all have antidandruff and/or antifungal properties to help with itching and flaking," said Dr. Belmo. For mild cases, this may be enough. "You can also look for shampoos containing ketoconazole. This is antifungal and can therefore help to reduce the yeasts on the skin," she added. In addition to that, Dr. Belmo noted that salicylic acid can help reduce scaling on the scalp, too.

When it comes to things to avoid, Dr. Seghers said it follows the same general rule as moisturizers: avoid perfume-smelling shampoos and opt for gentle formulations. She noted that some of her patients benefit from baby shampoos as they're usually very gentle on the scalp.

To get started, Dr. Belmo recommended using a new shampoo two or three times a week until the dandruff or scaling is under control, then once a week as maintenance. "Try to lather well and leave on the scalp for about five minutes before rinsing off," she said.

Read on to shop some dermatologist-recommended shampoos specifically formulated for scalp eczema.

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beautydailynews does not provide medical advice, diagnosis or treatment.

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