Hi My Baby Is 1.5 Yr Old. He Is Having

Hi my baby is 1.5 yr old. He is having loose motions nd vomiting from last 10 days... He got hospitalised for 4 days due to dy hydration. Then same problem started after his di charge. His dr gave z&d drops, entrogermina, rantac. Nd told to give him him soft diet. But he is not eating anything. Just taking few sips of ors in an hour.