OMG! The same thing used to happen to me, that is so weird. My skin would be all itchy and red when I got out of the shower and then by an hour later it was all gone. It doesn't happen anymore, but it did for a long time, like several years. I honestly don't know what made it go away, but if it happens mostly in the shower you should try changing soaps or shampoos because you could be allergic to that.
