Eczema

I need some help here, mommies. My 3.5 month old has some bad eczema that is exacerbated by her constant rubbing and scratching. The pedi prescribed a hydrocortisone steroid cream but I really want to stay away from using that.

I've tried Puracy and Aquaphor and it didn't seem to make things better. I'm currently trying coconut oil which seemed to work at first but now looks like there's a placebo effect.

Any tips on what else I can try? I have CeraVe next on my list but have heard good things about Mustela and Weleda calendula cream. Any advice is appreciated. Thanks.