What should you know about extreme scalp itching and flaking?

Scalp scale can come from irritation, dryness, contact dermatitis after a new dye or product, atopic dermatitis, psoriasis, or a fungal infection. Lichen planus may cause inflammation and hair loss, while scabies can cause intense itch and affect other household members. A yeast-related skin infection is another possibility. These conditions can overlap in appearance, so a clinician may examine the scalp, hair roots, ears, and nearby skin.

Scratching can create small breaks, crusting, and temporary shedding. Thick scale, bleeding, tender areas, or patches where hair is breaking are useful details to report rather than signs to treat blindly.

Stop recently introduced dyes, fragranced products, and harsh styling products if they sting or worsen the scalp. Wash with lukewarm water, loosen scale gently rather than picking, and avoid sharing brushes, hats, or towels until infection has been considered. Keep nails short. A clinician can match treatment to the cause, which may involve a medicated cleanser, anti-inflammatory medicine, or treatment for fungal infection; avoid applying strong creams to the scalp without guidance.

Arrange prompt review for painful swelling, pus, fever, rapidly spreading redness, thick crusts, sudden patchy hair loss, or a shiny tender area. Seek urgent help for facial swelling or breathing difficulty after a product. Persistent symptoms despite changing products also merit assessment because untreated inflammation or infection can affect hair follicles.

Ask whether the pattern suggests psoriasis, dermatitis, infection, or another condition; whether a scalp scraping or other test is useful; and which cleanser or medicine fits your hair type. Mention recent product changes, family skin conditions, household itching, hair shedding, and any eyebrow or body rash.