Is there a specific causal agent of pthiriasis? Is it contagious disease? How can it be diagnosed and what’s the difference between pthiriasis and some other skin disorder? What’s specific for this disease? What treatment does it require?
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Pityriasis can most often be diagnosed by dermatologist, simply looking at it. Also, blood tests can be done to exclude other conditions. Main symptom of pityriasis rosea is appearance of herald patch that is dry to touch. It’s not contagious disease. Pityriasis usually goes away on its own, within about two months.
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