R.K.
Go get her! If my child went to that daycare and I found out your child was there with the flu I would be one pissed off parent!
If she was on tamiflu she should have been feeling better by now. It's possible she is coming down with another virus. Either way go pick her up don't wait or them to call. Sending a sick child to daycare or school is irresponsible. I know you didn't know but you know now so do something about it!