A member asked:

I was diagnosed with pityriasis at least 15 years ago through a biopsy. how common is it to last that long and could it be something else?

A doctor has provided 1 answer

Which kind?: Pityriasis rosea would be gone, but lichenoides, rubra-pilaris, or tinea "pityriasis" versicolor can hang on for years.

Answered 3/26/2013

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