What an awful predicament for you to be facing, of course your son's health is important but i sure know how you feel about your kitties too.

I too agree with the others, the eczema is probably due to other things rather than the cats itself, my daughter has it too, and honestly i have not noticed it flare up when around the cats, i found for her to keep moisturizing her skin with a good moisturizer and baby oil was helpful to keeping the skin from drying out too much and then using the cream, lots of babies and children suffer from eczema, it is a very common and annoying ailment, especially in a young baby, but hang on in there.,sometimes they do grow out of it,and i am sure it is NOT the cats, here's hoping.