Thank you for your query on Healthcare Magic.
Your child seems to have gastroenteritis
. Mostly of a viral cause.
The mainstay of treatment is to maintain adequate hydration of the child.
First I advise you to control his vomitings by giving an anti emetic like ondansetron or domperidone
in prescribed dosage.
Give him sips of oral rehydration fluids like Pedialyte, coconut water, and lemon water to prevent dehydration
Monitor his hydration by his urine output, skin turgor, and activity.
Probiotic like lactobacillus
or Saccharomyces can be added after doctor prescription.
as early as possible to get your child assessed the hydration status and for the treatment.
Hope I have answered your query.