Why is my son vomiting and having loose motions?

Q: My 3-year-old son is vomiting and suffering from loose motions for the last two days. What mode of treatment should we take?

A:The main concern is that he should not get dehydrated. I would suggest that you keep giving him liquids. However, if he continues to vomit and does not tolerate orally then there is this concern of dehydration. This would require a clinical examination by an expert.