Thanks for your query.
It is normal for babies to pass several motions a day due to increased gastrocolic reflex.
Also if infevtive it is mostly viral in nature and settles in few days.
Antibiotics are only required in case of infective diarrhea
caused by bacteria.
There is no need to give metrogyl
Give oral rehydration solution sip by sip after each loose stool
,continue with breast feeding.
Give lactobaccilus sachet for 2 to 3 days and zinc for 14 days.
Continue with paracetamol
if fever is above 100F.
Monitor for features of dehydration
like decreased urine output/lethargy/refusal of feeds and in case you observe any then she close monitoring and intravenous fluid as per her hydration status.
Hope this helps.