I only had eczema on my elbow, and like I said earlier it persisted for years, and every thing I tried failed to get rid of it.
After I bought a CS generator I started soaking my elbow. It would improve by about 80%, and I would slack off, and it would get worse. It wasn't until I really got serious about getting rid of it by soaking it every day in CS that I finally got rid of it.
Not sure if this was a coincidence or not, but as a child I remember my dad having some problem on the same elbow that he couldn't remember how or when it started, but it itched and he would scratch until it bled. He never was able to make it well.
Anyway I am glad to be rid of mine. Hope you find a solution to yours.