Hiya Cailin,
My little girl gets eczema from neck to knee, poor little thing.
I've tried many things and wasted a lot of time and money in the process...not many of them work for long if at all. I try to steer away from prescription creams because most are cortisone based, and I don't like the long term ramifications of them especially since it's her whole body that gets covered in them.
I've found that keeping her away from all soaps works wonders...she gets washed in a good quality sorbolene such as Hydraderm, and then a dose of it after her bath/shower also. When she has a flare up I use Lucas Paw Paw ointment, which is really fantastic, and natural, which I like, and finally we use omo sensitive to wash in.
I think everyone responds differently to different things though, but there's a few simple solutions that may help you out