Unclear82

For almost 2 weeks now my underarms have been having a burning and dry feeling to them. I thought it was that I had changed to a different deodernt and possible I was having a reaction to it but there is NO redness, NO swelling, Just the feeling as if the skin is rubbing  on something causing it to feel like its burning. Funny thing is. When I lay with my arms over my head I hardly notice it. Does anyone possible know what this might be. I have been cleaning the area very well and making sure it was dry and went back to my old deodernt that i was using but trying to let whatever it is heal for the last few days and no put any thing under my arms. Im just lost, No bumps, No redness or swelling. Almost as if its Neruo Pain. Any Ideas..   Thanks