Possibility of cancer?I'd prefer answers from people with some kind of medical background pls.?

For the past few months now I was getting these weird burns lines down my back in various places, then they stopped & a short while after they started back but on the backside of my hands now leaving scars & then a shorter while after that while continuing to get the odd burns on my hands I started getting little blisters on the palms of my hands which would last for a day or two then turn into the only way I can describe it is these thin calluses, some blackish & some brown, then peel off leaving little circular scars on my palms & just before I decided to write this seemingly out of nowhere my wrist got very itchy & I looks down at it & I have what looks like a scab but it's not hard it is more like a blood blister or something & there are spots around it that looks like blood vessels in the surface of the skin have ruptured kind of like when you scrape yourself hard but don't break any skin ...now I do NOT do any drugs nor have I burned myself or have been exposed to any chemicals that I know of I don't really have very reliable access to a Dr right now either so I have been kind of putting off trying to go in & see one.