Yes, My 15 Month Old Grandchild Started Vomting At Daycare

Yes, my 15 month old grandchild started vomting at daycare at about 5:00 pm or so, he had a slight elevated temp at about 100 degrees, no diarrhea, but really looked sick. Several hours later he threw up again, won't eat anything and when he finally fell asleep, he woke up crying several times. My daughter has been trying to give him pedialyt, he has taken some of it. But, what do you give him for a stomach ache? if that is all it is, and what about the elevated temp and no diarrhea?