I'm a stay at home mom with a similar (but not exact) experience to your daughter, so take my suggestion for
what it's worth.
I had chronic hives
since childhood. It was undiagnosed until my 20s. My new allergist said people with dermagraphism (my for
m of chronic hives
) was frequently a side symptom of an auto-immune disease. He tested me for
6 different ones, and
I came back positive for
Hashimotos (my immune system attacks my thyroid).