Re: 2 year old with flu...How long will this last?
Some people get really high fevers. Rather than watching the numbers, I think the most important thing to watch is her behavior. If she's behaving normally, I wouldn't be too worried about it. If she seems to be more lethargic, definately see your doctor again. The most important thing is to trust your instinct.
Still, it sounds like she should be over her fever after 6 days. Is she getting lots of vitamin C, lots of rest and lots of good food?