Quoting blessed with girls x3:" One of my kids had a high fever like that once that just kept coming back, for like a week. She had no ... [snip!] ... wanted to get rid of us. Either way she recovered just fine. Its likely just viral like they said, just keep watching her ."
same kind f thing happened to my son. when he was around a year old his temp got up to 105 and we took him to the er. he was also throwing up all night. but they did tests and found nothing but his ears were just a little red. (could have been that he was screaming for an hr from having an iv) which they said but "just to be on the safe side" they gave us a prescription for amoxixillin which turns out hes allergic to and he had a full body rash for a week! his fever went away before the antibiotis would have helped it lol