Pityriasis Lichenoides

I. Definition:

Pityriasis lichenoides is a rash with red or brown, raised, scaly patches that can form scars. The condition is not dangerous.

II. Causes:

• The cause is unknown.
• The disease is more common in males.
• Usually begins during the first thirty years of life but can start at any age.

III. Course:

• The rash can last for weeks to months. It usually disappears within one to two years.

IV. Treatment:

• Corticosteroid creams and ointments applied to the skin often control the rash and itching.
• Antihistamines such as Benadryl by mouth will help alleviate the itching.
• The disease can be controlled but not cured.
• Sometimes ultraviolet light treatment will improve pityriasis lichenoides.

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