My daughter rescued six kittens from a hot car, they were not in there too long, thank God. She brought them home and we guess they are about 4 weeks old, there is no mother. We have been feeding them formula and dry kitten food. They have diarrhea and the smallest one is very weak and not eating much formula or water. We took them to the vets and he said that they are not doing to badly except for the little one. He gave us antibiotics and something to balance their gut, he took a stool sample and found no parasites, but their gut systems are unbalanced. He did give the little one fluids, she was dehydrated. We got them last Saturday. We will take the little one to the vet on Thursday for more fluids. What can I do to get food and fluids into her? I am so worried about her, I don't want her to die. She just wants to sleep on us. Any help would be grateful. Rescues around here (Mich) won't help and humane society is a joke.