A while back I posted on a thread by 'VictorianSqualor' that read what the hell is this on my sons head. My 3yo got referred to the dermatology dept at Bham childrens hospital back in Nov after my doctors couldnt find out what it was. After a second trip to the hospital they have diagnosed him with psoriasis. I have never heard of it in children so I am after a bit of background info. He has a bit on his ear and elbow too but mainly his scalp which has made his hair fall out. I have all kinds of lotion and potions from the doctor. I asked if the diet had anything to do with it but doctor said no just the genes. Advice please???