Ugg seaflower, I so feel for you. I too have been in a very similar situation and realized you pretty much need to walk into the dr's office with a diagnosis already. :roll:
Since you're still nursing the rash could certainly be caused by something you ate but like you said it is so hard to determine what that was. Does she have any other sympotoms of a dairy allergy or is there only the rash?
As for the eczema. Might I suggest getting a tub of Cetaphil (kinda pricey but worth it) and using this on your lo. I have had to put it on my ds up to 6 times per day but I didn't have to use his perscibed steroids then. :wink: I know how much work this will be but it would be worth it for your poor baby to get some sleep (and you maybe :wink: ).
Let's pray that she does grow out of this more sooner than later.
It's never any fun to watch your angel suffer.