Psoriasis and urine burn

Hi everyone, I am new to the forums but have been reading in the backgrounds for a while. I just have a general query. I get quite bad flare ups of psoriasis on my hands, scalp and private areas in the winter and just wondered if anyone else has had quite painful burning and stinging pain when urine comes into contact with their psoriasis. I assumed maybe its the salts in my urine but just wondered if anyone else has had this? I have to wash my hands and bits straight away as it feels like battery acid. Please tell me I'm not the only one.