@ninja8tyu have you tried hyrdrocoritsone cream? might be worth a shot if you haven't yet.
also just throwing it out there, i don't have eczema but i do have some areas with super dry skin that gets real itchy since i live in a desert. body butters work super well. i'm not sure if using them on eczema is going to work particularly well or not though, and you'll want to look at the ingredients list to make sure you're not allergic to anything, use it on a small patch of skin first, etc.
i apply, itchy next second
i got some upgraded itch cream, fluocinonide cream, which works, but you can only get through prescriptions, and i'm running low on the one i have (and it really ain't enough to cover my whole body for days until i properly recover)
so i'm fairly limited in what i can do