Thanks for your query
Your child is having acute gastroenteritis
which is mostly viral in nature,
Most important is to maintain proper hydration.
I suggest you to continue with oral dehydration
solution sip by sip after each loose stool.give coconut water,lemon water,curd,banana,boiled potato.
Also give lactobacillus
sachet for 2 to 3 days and zinc for 14 days.
In case symptoms persist take her to pediatrician
Wishing your daughter good health