Hello, It is an intestine infection, most likely through some sort of bacteria or virus which may be ingested via contaminated food or liquids. Remedies for better recovery - Prescription of an antiemetic as ondansetron syrup, antispasmodic syrup as dicyclomine with his pediatrician or nearby primary health care provider if away from your doctor. - Once vomiting is controlled, give more liquids in session including boiled water, coconut water, lemon juice, butter milk. - Do not offer commercial beverages, junk foods, dairy fat. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Bhagyesh V. Patel