Thanks for your query. Most probably he is having gastritis
resulting in vomiting
. Try giving him antiemetics after showing him to a doctor. If still his vomiting persists preventing him from taking anything then he needs to be started on intravenous fluids. Keep him hydrated with liquids, juices, water, coconut water, buttermilk. He will be alright in two or three days.
Previous episode may or may not be related. Do you use unboiled water ? DO you frequently eat outside ? These are some reasons for recurring vomiting.
Dr. Balaji Chinnasami MD
Assistant professor Pediatrics