Thanks for your query.
Your daughter is having acute gastroenteritis
. which is mostly viral in nature and takes few days to subside.
Most important is to maintain proper hydration.
Give her oral rehydration solution sip by sip after each loose stool
,give coconut water,lemonade,banana,boiled potato,curd,rice puree.
Give lactobaccilus for 2 to 3 days and zinc for 14 days.
Watch for features of dehydration;
lethargy/decreased urine output/sunken eyes.
In case you find any ,get her evaluated by pediatrician
Wishing your baby good health.