99.6 is not a fever-I would just watch her and see how it goes-like Kelli said-Man the school would have me all over them if they sent my kid home with a fever of 99.6-unless she really felt bad (that really isn't a fever)
in the ER we only consider 101.3 a fever in kids and 100.3 in babies-I hope she feels better soon

-they're is a lot of bad stuff going around