I'm interested in the answer you receive too. I notice mine is more noticeable after a hot shower? Yours too?
My ANA is 1:160 and I have significant protein in the urine, along with a lot of joint pain. I haven't been tested beyond this -- but if it is a lupus rash I'm seeing, this would be 4 of the 11 criteria for me. Like you, though I'm not sure if my rash is the "lupus" rash.
Hoping you get an answer and good luck.