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Pityriasis Rosea - Causes

Medically Reviewed by Dr. Sunil Shroff, MBBS, MS, FRCS (UK), D. Urol (Lond) on Apr 19, 2013


Causes

Pityriasis rosea is not triggered by an allergic reaction to food or medication or by stress.


The signs, immediately before the onset, resemble those caused by a viral infection. Human beta Herpes Virus ( HHV-7), has now been associated with the disease. This virus is believed to be genetically linked to Cytomegalovirus. It may affect more than one person in a family at a time, yet the disease is not considered contagious.

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