Bumps on back

My daughter has eczema which I got controlled but months ago she got a rash which turned to these bump but they didn’t bug her and I thought I’ll wait and see if they go away... and they haven’t... anyone know what it is??? Or what I can use?? Or should I go back to the dermatologist ?? They aren’t bugging her but I want to know why they haven’t gone away or what It is so I can figure out how to get rid of it