Thanks for your query.
Your child is having diarrhea
which is mostly viral in nature and settles in few days.
Monitor her hydration.
Give oral rehydration solution sip by sip after each loose stool
,give coconut water,lemon water,boiled potato,banana,rice porridge.
Decrease quantity of milk and cows milk is better.
Monitor for features of dehydration
like decreased urine output,lethargy.decreased feeding and in case you observe any get her evaluated by pediatrician
Wishing your baby good health.