Certainly doesn't seem to be psoriasis, although I think my mum has that, as it's not scaly and isn't anywhere else. Don't really think eczema either. Cold exasperates eczema rash, doesn't it? With my rash, cold soothes it. Also, my mum gave me a cream and that worked. Had no bleeding or ickyness either. Only closest thing are those raised, but painless, bumps which can appear when scratching, but no cracking or scaly scabs or anything like that.
Before, on the very rare occasion I experienced the rash, it was like having a real itchy itch, just the kind that would itch just as much when I scratched, but it would be gone in minutes. Just like any other itch that just so happened to be in an area where scratching felt good.
It's just this week it hasn't stopped itching completely and a couple of times it was really badly itchy.
I'd say the itch is most prominent on the area of my fingers from, and including, my knuckles and the two sections of the fingers from the knuckle (in other words: the fingers except for the nails).
At least it's only ever on the top/non-palms of my hands and fingers. Well, I hope that's a good thing.
Maybe it's fleas or bugs or something. *shrug* If it is one of the many skin conditions, it must be a very mild form of it.