Honestly, I would consider a gluten allergy or sensitivity. My DH suffered for YEARS with eczema. He was on countless steroids, some so powerful he could not touch me when I was pregnant. NOTHING worked. Our newest SIL is celiac, so he got her some gluten free beer for her at a family party. He drank the rest and noticed that his hands did not itch like they normally did when he had beer. From there he started to do research and then went gluten free. With in 2 weeks the majority of his eczema was gone! In 2 months the worst of the worst was gone. For him he swears it is a miracle!
Do some research, and you will find a lot of people who experienced the same.
If you go Gluten Free, you have to go all the way to see benefits though, you can't do GF-lite.