In reply to Andy DB:
I've always had it to varying degrees. At the moment it's on my hands. It's a real pain keeping it under control, as your hands are exposed to everything.
Stuff that makes mine worse is stress and wet. Obviously not getting my hands wet is hard!
Stuff that helps:
Non bio washing powder.
Minimise exposure to anything soap / detergent or solvent. Unfortunately gloves can make it worse for me, so I wear silk liners under my rubber gloves for washing up / squeezing lemons etc... I said it was a pain!
Find products that work for you and stick to them. For me the only thing I wash my skin with is Eucerin AtoControl. Expensive but the only thing that never makes it worse. I carry a small bottle with me everywhere.
As an emollient I use A-Derma Exomega. Again, it's pricey and hard to find, but it's the only thing that never makes it worse.
Vaseline is good most of the time, especially as a protective barrier while out in poor conditions.
E45 and all the other stuff in Boots just makes it worse.
I only use steroids very rarely as a last resort, as long term use is a bad idea.