Besides crohns, I also have eczema, but thankfully it's in remission, wish I could get the crohns there but it hasn't ever happend to date so I'm not holding my breath...it's quite common to have more than one autoimmune disease more so then to only have one.
I had extreamly severe eczema as a child...it wasn't until my early 20's that I became sick with crohns.
:)