I started getting eczema really badly on my hands and chest when I turned 30....I had no idea what it was, but it wouldn't go away and was horribly itchy! I also started getting the rashes on my legs, really bad on the backs of my calves and on my thighs. I finally gave in and saw an allergy dr about it, and he said it was eczema. That was almost 2 years ago, and all I found to help was an oily ointment he had prescribed that I hated (Clobetasol Propionate)...because it didn't sink in fast and it got oily stuff all over anything I rubbed against....and it didn't really help all that well. I was in agony for the last 2 years with the itching until I went to using all Lush body products that are all natural. I regularly use their massage bars, and Shea Terra body cremes. And, I recently found Neosporin Eczema Essentials Daily Moisturizing Cream (active ingredient: colloidal oatmeal). It says to restore healthier looking skin in 3 days, and it really works! It's expensive, at $11 to $15 for a 6oz tube, but it's the best stuff I have found so far that works well, and works fast! It's not oily, not smelly, sinks in well and leaves skin soft and hydrated. I had some really bad rough and itchy patches on the backs of both hands when I started using the cream, and within a week it was all cleared up.
I don't know if it is significant, but I never had it until I moved to TX from TN. I moved to TX in summer of 2010, and first started getting the rashes the next January. It's also worse in the winter than in the summer.