My daughter has been sick for 3 days now. no fever vomitting and diarrhea she will not eat?

Push fluids: Some of these stomach viruses that are going around right now are lasting longer than the usual day or two we usually see. I caught one and was sick for 5 days. Don't worry so much about the food - concentrate on fluid intake so she doesn't dehydrate. Also start some probiotics -if you can't get her to eat some probiotic yogurt, you can buy gummy bear probiotics or powder that you can add to fluid.