What should you know about excessive itchy scalp?

Flaking with greasy scale can occur with Dandruff or Seborrheic Dermatitis. Thick, sharply defined plaques may point towards Scalp Psoriasis, while tender bumps or pus around hairs can occur with Folliculitis. Lice may cause persistent itching, especially around the ears and nape, with attached eggs on hair shafts. New hair dye, fragranced products, dry air and scratching can also irritate the skin without causing an infection.

Pause newly introduced hair products and use lukewarm water rather than vigorous scrubbing. Wash regularly with a gentle shampoo; a clinician or pharmacist can help select a Medicated Shampoo Treatment when flaking or inflammation is present. Avoid sharing combs, brushes, hats or bedding until lice have been excluded. Do not pick at crusts, because broken skin can become infected. Note when the itch began, where it is worst, and whether you see scale, redness, sores or hair shedding.

Arrange a dermatology assessment if itching persists, interrupts sleep, causes open sores, or comes with painful swelling, pus, patchy hair loss or spreading redness. Seek prompt care for facial swelling, breathing difficulty, fever with rapidly worsening scalp pain, or a severe reaction after a product. A clinician can inspect the scalp and hair closely rather than assuming that itch has one cause.

Could this be Dandruff, Seborrheic Dermatitis, Scalp Psoriasis, Folliculitis or Head Lice? Which washing schedule and active ingredient suit my scalp? Should household contacts be checked, and when is Head Lice Treatment appropriate?