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.