Thank you for your query,
Your child is having gastroenteritis
Usaually in gastroenteritis, vomitings will start first followed by loose motions.
Tha main problem of this is developing dehydration
of the body.
So give sips of oral rehydrating solutions like ORS, Pedialytes, coconut water, lemon water and dal water after each loose stool
and in between in equal amounts to the losses in stools to prevent dehydration.
Monitor her hydration by looking at her activity, tongue and oral cavity moisture, urine output.
Probiotic may be added like sporolac or econorm after consulting your Pediatrician
for examination and assessment for hydration.
Hope I have answered your query.