Extremely Dry, Itchy Scalp: What to Know

Dry indoor air, hot water, frequent washing, hair dye, styling products, and fragranced formulas can strip or irritate the scalp. Dandruff and Seborrheic Dermatitis may cause recurring flakes with itch, sometimes extending around the ears or hairline. Scalp Psoriasis can form thicker scale that reaches beyond the hairline. Folliculitis tends to involve tender or itchy bumps around hairs, while Head Lice may cause persistent itch with nits attached near the roots. Read more about [Itchy Scalp](/symptoms/itchy-scalp/).

Use lukewarm water and a mild, fragrance-free shampoo. Rinse thoroughly, avoid vigorous scratching, and pause new dyes, oils, sprays, or treatments until the scalp settles. Keep nails short and use a soft brush rather than lifting scale forcefully.

If a clinician identifies dandruff or related inflammation, [Medicated Shampoo Treatment](/treatments/medical-dermatology/medicated-shampoo-therapy/) may be discussed. Do not use [Head Lice Treatment](/treatments/medical-dermatology/head-lice-treatment/) unless lice or nits have been found or a professional advises it.

Arrange care when itching lasts, returns often, causes sleep loss, or comes with thick scale, hair loss, sores, or bumps. Seek prompt help for pus, spreading redness, marked swelling, fever, or severe tenderness. A clinician can inspect the scalp and hair shafts and select treatment for the actual pattern.

Could this be Dandruff, Seborrheic Dermatitis, Scalp Psoriasis, Folliculitis, or Head Lice? Should I change my shampoo? Is a medicated shampoo suitable? What should I do if flakes persist after stopping a new hair product?