Thanks for the query to H.C.M. Forum.
is related to sore throat
or not , it is not possible to say something, without any complete history.
If semisolid stool is there that too 4-5 times need not to worry, no treatment necessary.
If watery diarrhea is there then get treatment from physician .
Water with sugar, salt will help.
Plenty of water with juice are good for child.