Yeah, I would try something else. I know a couple of months ago now, I tried Riley on a little bit of milk again, just a splash on his cereal in the mornings and *thought* he was doing okay for a while. Then over a period of a couple of weeks, I noticed his sleep getting more disturbed, then his excema came back with a vengeance, so I cut the milk out again and he went back to normal.
I don't know what it is with him, not sure if it is the proteins or not, but there is something in there that bothers him.