Seborrheic Dermatitis

Inflammation is thought to arise as a result of yeast overgrowth (Pityrosporum orbiculare) which colonizes affected individuals.

Infants are at risk early in life, when they develop “cradle cap”. This disorder is characterized by a symptomatic crusting of the scalp. Most of the time, it is the worried parent who brings the condition to the attention of their dermatologist. Other individuals including those with immune deficiency disorders, diabetes, malignancy or HIV are more susceptible. Finally, those with psoriasis, acne or Parkinson’s disease are prone to develop seborrheic dermatitis.

Seborrheic dermatitis may be treated topically with either corticosteroid creams, antifungal, topical sulfur preparations or tars. At present, there is no cure for seborrheic dermatitis. Symptoms can only be controlled. In several instances tar shampoos or zinc shampoos are helpful. In instances where a secondary bacterial infection may be present, we recommend antibacterial shampoos, or even oral antibiotics. Treatments are directed to remove persistent scale and inhibit yeast from colonizing the skin. These are aimed at the control of symptoms rather than achieving a permanent cure.

Usually not. This diagnosis is typically made on a clinical basis. In most instances, blood, urine or biopsy samples are not performed. In cases unresponsive to treatment, skin biopsies or immune testing may be performed. Dr. Harvey can advise you on how to proceed if your condition is resistant to treatment.

Seborrheic dermatitis tends to be a chronic condition with periods of flare-ups and remission. While it may improve temporarily, treatment is often necessary to manage symptoms long-term