Conversation: The conversation between human and AI assistant.
[|Human|] Hello. My 12 year old son had pityrissis rosea 3 to 4 weeks ago. Most of the spots are fading including the herald patch on his chest. There is a spot on his buttock however which seems redder and is not fading so quickly. Is this likely to be a form of pityriasis or something else?
[|AI|]  Thank you for sharing your query on Chat Doctor, I have carefully worked through your case, I think it could be an atypical variant of the Pytirissis Rose the disease has described both (typical and atypical presentation) although localized satyriasis rose is an unusual variant, these variations may involve differences in the lesions themselves (size, color) and differences in how they are distributed or both I suggest keeping the treatment because she is in 3-4 weeks of treatment and the rash can last as long as 6-8 weeks before fading.  Please kindly rate if my advice has been helpful Wishing you a good health Chat Doctor.