Thanks for writing to health care magic.
Do not worry.
Only thing we should do in case of loose stool
is prevent dehydration
Give ORS and monitor for signs of dehydration.
If there is blood or mucus in the stool and baby starts to have fever
then we should treat with antibiotics if we are suspecting dysentry
There are no specific restrictions but try to avoid things from the park and try to give home made food for kids.
Hope this helps.