I had that when I was 13. Fever topped at about 103. I had hallucinations and I was told I talked in an unknown language as if I was talking to another person. I felt better then relapsed. I missed two weeks of school. One of the things my mom used to keep me cool is called Alcolado 70, bay oil I think. It's for muscle aches. Of course I was given medicine too from the doc.
Don't take her outside unless you absolutely positively have to even if she looks just ok.
Be well and have a happy new year.