I have a rash on my chest/neck that appears from nowhere, lasts several weeks before fading, then reappears months later. It's red and blotchy but doesn't itch. Feels slightly warm to the touch. Apart from it looking unsightly, it really doesn't bother me at at all.
But it keeps reappearing in the same place over and over again- at least 5 times in the past 2 years. Should I be worried about it? or is it just one of those things?