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Causes Pityriasis Rosea

What are causes of Pityriasis Rosea as I searched on Google very little information available. How to prevent after it started infection.
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Dr. Pallavi B
Dermatologist 4 yrs exp Bangalore
Pityriasis rosea is a self limiting condition which is usually present for 6 to 8 weeks. Causes include viral infections like herpes and drugs like barbiturates, gold, retinoids and terbinafine can precipitate P.rosea. As already mentioned it is a self limiting condition, lesions resolve without treatment. If itching is severe, topical calamine lotion can be used. If lesions are extensive then a topical steroid can be used. P.rosea rarely recurs, but if persists or recurs the patient should be evaluated.
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Dr. Aditi Deshpande
Dermatologist 5 yrs exp Mumbai
Pitryiasis rosea is allergy developed after viral infection. Generally It occurs after episode of fever or illness.If u have itching u have to take medications for it otherwise it generally resolves on its own.
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