Thanks for your query.
Your child is having diarrhea
which is mostly viral in nature and settles in few days.
Nutrilin b and darolac are both probiotics ,give either of two.
Most important is to maintain hydration.
Give oral rehydration solution sip by sip after each loose stool
,give coconut water,lemonade,curd,buttermilk,boiled potato,banana.rice porridge so as to maintain hydration and nutrition.
Watch for features of dehydration
like lethargy,decreased urine output.increased thirst and in case you find any get her evaluated by pediatrician
for proper management.
Wishing your child good health.