It's only on the top of her head and it's little individual white scales that every so often build up into little clumps which are slightly yellow. Doesn't seem to hurt her but it does seem itchy and she has dandruff. It's come on in the last few weeks or so. I have eczema and some of my family have psoriasis. Does it sound like one of those? What should I do to help her, or should I just go to the doctors? TIA