Conversation: The conversation between human and AI assistant.
[|Human|] hi im weng from philippines, 39 years old 150lbs and 53 in height,my query is,i have a round thick scaly thing or rash in  the buttocks first then now i have in my back and my legs but this round rash become pink after a few days and its not itchy,what is this thing?
[|AI|]  Hello. Thank you for writing to us at Chat Doctor I will keep a possibility of Psoriasis Vulgarism. Psoriatic patches are red, well-defined and scaly. Scaling is white or gray, thick, candle wax type. The patches are classically distributed over extensors like back, elbow, knee. Itching is subjective. The diagnosis of psoriasis is usually obvious on clinical examination. Rarely a biopsy may be required to confirm a diagnosis. I suggest you to visit a dermatologist for a confirmatory diagnosis as well as appropriate treatment. Moisturizers are an essential part of treatment of psoriasis. Specific treatment of limited skin involvement with psoriasis is with potent topical steroids e.g. clobetasol propionate, clobetasol propionate and topical vitamin D analogues e.g. calcitriol and calcitriol. Regards