How common is itchy scalp in seborrheic dermatitis?

Seborrheic dermatitis affects areas where oil glands are active, including the scalp. It commonly causes itch with flakes or greasy scale, and the skin may look red or feel irritated. Similar changes can occur around the eyebrows, sides of the nose, ears, or beard area. Symptoms may vary over time and can flare with weather, stress, illness, or irritating products.

An itchy scalp is not enough to identify seborrheic dermatitis. Psoriasis, eczema, contact dermatitis, fungal conditions, and lice can overlap in appearance. A clinician may examine the scalp and nearby skin before choosing care.

Wash the scalp gently and avoid scratching, harsh scrubbing, and strongly fragranced products. Rinse thoroughly so residue does not remain on irritated skin. Keep a note of products, hair treatments, and conditions that seem to trigger flares. If flaking and itch continue, ask a pharmacist or clinician about a suitable medicated scalp product and how often to use it.

Do not scrape scale from the scalp. Loosening it gradually with gentle washing is less likely to create small breaks in the skin.

Arrange an assessment if symptoms do not settle with gentle care, repeatedly return, or extend onto the face or ears. Seek prompt advice for marked pain, swelling, pus, fever, or widespread broken skin. New hair loss or a rash that looks different from previous flares also deserves review.

Ask whether the scale and redness fit seborrheic dermatitis, which cleanser or scalp treatment is appropriate, and how to use it without irritating the skin. Ask how to recognise a flare that needs a different diagnosis or treatment.