Seborrheic Dermatitis

Seborrheic Dermatitis (Dandruff)

Overview

Seborrheic dermatitis is a common, chronic inflammatory skin condition that causes flaky, scaly patches and redness, primarily in areas rich in oil glands. In its mildest form on the scalp, it is known as dandruff. It is associated with Malassezia yeast overgrowth.

Key Symptoms

• Flaky, white or yellowish scales on the scalp (dandruff)
• Red, greasy skin covered with flaky scales
• Itching that may worsen during flare-ups
• Scaly patches along the hairline, eyebrows, and nasolabial folds
• Crusty or flaky skin behind the ears
• May flare during cold, dry weather or periods of stress

Affected Areas

Scalp, Eyebrows, Nasolabial folds, Behind ears, Chest, Upper back

Care Instructions

1. Use medicated shampoos with ketoconazole, selenium sulfide, zinc pyrithione, or coal tar.
2. Alternate between different active ingredients to prevent tolerance.
3. Apply shampoo to affected areas, leave on for 5 minutes before rinsing.
4. Use a gentle moisturizer on affected facial and body skin.
5. See a dermatologist if OTC treatments are not effective.
6. Manage stress and get adequate sleep, as flare-ups often correlate with stress.

Medical Disclaimer: This information is for educational purposes only and does not replace professional medical advice. Always consult a qualified dermatologist for diagnosis and treatment.

Prevalence: Affects 3–5% of the population (dandruff affects up to 50%)