Dandruff and Seborrhoeic Dermatitis

A common condition causing flaky, itchy scalp and greasy, scaly patches on the face and chest.

SkinScalpLast updated: 21 October 2026

Quick Summary

Primary Symptoms

White or yellow flakes on the scalp, itching, and red, greasy scaly patches around the nose, eyebrows and ears.

Common Treatments

Medicated shampoos (such as ketoconazole), antifungal creams and mild steroid creams for flares.

Risk Factors

Oily skin, stress, cold weather and some medical conditions such as Parkinson's disease.

OverviewSymptomsCausesTreatmentFAQ

Overview

Seborrhoeic dermatitis is linked to a yeast that lives on the skin and an inflammatory reaction to it.

It comes and goes but can be controlled with regular treatment.

Symptoms

Flaky scalp

Dandruff.

Itching

Of scalp or face.

Red scaly patches

Around nose, eyebrows and ears.

Greasy skin

Oily-looking scales.

Causes & Risk Factors

Biological Causes

Overgrowth of Malassezia yeast and inflammation in oily areas of skin.

Key Risk Factors

  • Oily skin Common in oily areas.
  • Stress and weather Worse in winter and with stress.
  • Medical conditions Parkinson's disease and HIV.

Management & Treatment

01. Medicated shampoos

Ketoconazole, selenium or zinc shampoos used regularly.

02. Creams

Antifungal or mild steroid creams.

03. Maintenance

Ongoing use to prevent flares.

Frequently Asked Questions

Is dandruff caused by dirty hair?
No, though regular washing helps.
Is it contagious?
No.

Sources and further reading

Last updated 21 October 2026. For more detail, see these trusted health organisations.