My daughter has had a fever and vomiting for 3 days. She will not eat and is extremely cranky. We do not have health insurance. I was wondering if there is anything I can do for her or should I just take her to the e.r.

I imagine she is dehydrated. Take her to a clinic or doctor ASAP.

Health insurance or not she needs to see a doctor ASAP... yes I know you might not have insurance but its better to make sure she's healthy