What should you know about cure for dandruff and itchy scalp?

Dandruff causes visible flakes and may cause itch without an infection. Seborrheic dermatitis can bring more persistent flaking, redness, or greasy scale around the scalp and other oily areas. Itch can also occur with scalp psoriasis, folliculitis, or head lice. A close look at the scalp, the type of scale, and any sores or hair changes helps distinguish these causes. The symptom alone does not identify one diagnosis.

Use a medicated shampoo according to its label or your clinician’s instructions, allowing it to remain on the scalp for the stated contact time before rinsing. Apply it to the scalp rather than only the hair, and use it consistently during the treatment phase. Avoid picking flakes, very hot water, and strongly fragranced products if they irritate you. Rinse thoroughly and avoid sharing combs, brushes, hats, or towels if head lice are possible. A pharmacist or dermatologist can advise whether an antifungal treatment is appropriate.

Arrange a review if itch is intense, the scalp is painful, or there are pus-filled bumps, thick plaques, bleeding, marked redness, or areas of hair loss. Seek assessment for live lice or attached nits rather than treating indefinitely for dandruff. Medical advice is also useful when a careful shampoo routine does not settle symptoms or when a new product causes burning or swelling.

Does the scale fit dandruff, seborrheic dermatitis, psoriasis, folliculitis, or lice? Which shampoo ingredient and schedule should I use? Should I add an antifungal or another scalp treatment? What should I do if the scalp becomes sore?