Extreme dry scalp and dandruff: what to know

Dandruff presents with visible scalp flakes and may cause itch without thick plaques or marked inflammation. Seborrhoeic dermatitis can make the scalp itchy, red and scaly, sometimes with greasy-looking scale around the hairline, ears or eyebrows. Dry air, hot water, harsh products and frequent scratching can worsen a dry scalp. Thick plaques, sores, hair loss in patches or scale beyond the scalp may point to another condition.

Wash with lukewarm water and avoid scratching, fragranced products and vigorous brushing. A [Medicated Shampoo Treatment](/treatments/medical-dermatology/medicated-shampoo-therapy/) may help loosen scale and control dandruff when used as directed, while [Topical Antifungal Treatment](/treatments/medical-dermatology/topical-antifungal-therapy/) may be considered for a yeast-associated pattern. Follow product instructions and stop if severe irritation develops. Explore [Dandruff](/conditions/dandruff/) and [Seborrheic Dermatitis](/conditions/seborrheic-dermatitis/) for more context.

Arrange a dermatology review for painful inflammation, bleeding, oozing, thick adherent scale, patchy hair loss, or a rash reaching the face and not settling. Seek prompt care for fever, rapidly spreading redness or marked swelling. Persistent [Itchy Scalp](/symptoms/itchy-scalp/) or [Flaky Scalp](/symptoms/scalp-flaking/) merits assessment when self-care is not enough.

Ask whether the scale fits dandruff, seborrhoeic dermatitis, psoriasis, eczema or contact irritation; which shampoo ingredient suits you; how often to use it; and what signs mean the plan should change.