What should you know about extremely itchy scalp?

Dandruff or seborrheic dermatitis can cause scale with itch and redness, sometimes with an oily appearance. Scalp psoriasis may produce thicker plaques that extend toward the hairline. Folliculitis can look like itchy or tender bumps around hairs. Head lice cause itch and may leave nits firmly attached near the roots, particularly behind the ears or at the nape. A new shampoo, dye, oil, or styling product can irritate the scalp without causing a contagious condition.

Check the scalp in bright light rather than relying on loose flakes in clothing. Note bumps, crust, sores, nits, redness, and whether the itch began after a product change or close contact.

Use lukewarm water and a gentle cleanser, avoid scratching and harsh brushing, and pause new scalp products. A cool compress can provide temporary relief. When dandruff or seborrheic dermatitis seems possible, a clinician or pharmacist can guide use of medicated shampoo. If live lice are found, use a recommended head lice treatment exactly as directed and check close contacts and shared hair items.

Do not mix several active products or share combs, brushes, hats, and towels. Seek advice if symptoms persist, worsen, or return after treatment.

Arrange prompt medical assessment for painful swelling, pus, fever, spreading redness, thick crusting, or sores that do not heal. Seek review for patchy hair loss, broken hairs, swollen neck glands, or a scalp rash after chemical exposure. A clinician can distinguish lice, folliculitis, fungal infection, and inflammatory disease when home inspection is uncertain.

Ask what the bumps or scale represent, whether you need medicated shampoo or lice treatment, how to use it safely, and when to return. Mention product changes, close contacts with itch, fever, tenderness, and any hair shedding.