If your child has acute enteritis, symptoms may include vomiting, diarrhea, fever, and dehydration. It is recommended to provide adequate rest, a light, warm, and easy-to-digest diet, and to supplement fluids. Montmorillonite powder can be taken to alleviate diarrhea. In severe cases of dehydration, immediate hospital treatment with intravenous fluid therapy is necessary, which usually takes several days to recover. Wishing your child a speedy recovery.