Hi all. My 8 year old son has had this rash on his elbows for well over a year now. He says it doesn't really itch though I see him scratching/picking at it a lot. He has some digestive/immune/mood issues we're trying to figure out and I'm wondering if I'm totally barking up the wrong tree thinking it's gluten. He had attg iga test and it was negative. His allergist/immunologist said the rash is probably psoriasis but it doesn't look like it to me... thanks for your thoughts 
