Is this eczema? (pictures attached)

This sure looks like eczema to me, but I thought I would ask if anyone knows for sure. I first noticed it a couple of weeks ago. Back then it was just a small patch near my baby's ear. But now it's started popping up on her arms and back. If it is eczema, anyone have a tips for dealing with it? Thanks! ☺️☺️☺️