I get something like you described. I went to the doctor a few years ago for it and they said it was a fungus from having my hands in water too often. It made sense since I was working with animals and washing my hands constantly. The doctor gave me a cream for it and it cleared right up. My hands still break out on occasion, but I still have the cream (it was a big tube) so I haven't had to go back to the doctors for more.