Does seborrheic dermatitis cause itchy scalp?

Seborrheic dermatitis commonly affects areas with many oil-producing glands, including the scalp, hairline, eyebrows, and sides of the nose. Irritation can create an itch that comes and goes, with loose or stuck-on flakes and patches that look red or darker than nearby skin. Scratching may break the skin and make soreness or crusting worse. An itchy scalp has several possible causes, so its presence alone does not identify one condition.

Wash the scalp gently and follow the directions for any medicated shampoo recommended by a clinician or pharmacist. Leave a treatment shampoo on for the instructed contact time, then rinse thoroughly. Avoid scratching, very hot water, and fragranced products if they worsen irritation. Keep a note of triggers, affected areas, and whether flakes are dry or greasy; these details help a clinician choose between scalp treatments and investigate alternatives.

Book an assessment if itching persists despite suitable self-care, spreads beyond the scalp, or causes hair loss, bleeding, thick crusts, or sleep disruption. Seek prompt help for rapidly worsening redness, pus, marked pain, or fever, because infection or another inflammatory condition may need treatment.

Ask whether the pattern fits seborrheic dermatitis, how often to use a medicated shampoo, which products may irritate your scalp, and when to return if symptoms do not settle.