I've had eczema before but it's usually just an itchy rash, this is more like sore blistery spots. Since last Wednesday the back of my knee felt sore like sunburn but there was absolutely nothing there, on Sunday I suddenly noticed these spots, also if I rub my shin and calf it feels slightly sore like sunburn but looks fine. I took pics on Sunday, yesterday and today and comparing them it does seem to be getting worse, it's not particularly itchy like eczema either just really sore. I've been using aveeno which usually clears up any eczema pretty quickly, not that I even get it particularly often.