My baby suddenly vomiting 4 times back to back don't know what to do please suggest what to do

A. Emset can be given to the child as of now apart from that also I would recommend you to give really good amount of water that is going to help in controlling vomiting along with the medicine that I am suggesting also Dhoond give anything to the child to eat because it seems like a childhood already be having indigestion and which is bio child is going through a more meeting issue