J.D.
I know there is a diarrhea virus going around and its taking 4 days to get over. Apparently it is explosive and no matter what you eat or drink, it comes right back out just like water. Maybe the IV fluids won't necessarily work but as a mom, if you feel she is dehydrated, then take her back to the ER for fluids. I don't know why the ER cares unless they are afraid it may spread to to other patients. If she seems to be crying and making wet diapers, she might not need the IV fluids.