Welcome to healthcare magic!
I think you should have added Metrogyl
before Racigil but you can still start it.
Replace the fluids more than the child is loosing in stools.
It can be of viral origin also where no antibiotic is effective.
Just give the child beaten rice cooked in sugar and salt and 10ml oil along with curd at least three times a day.
It is very effective in Viral gastroenteritis
I hope this advise would be helpful for you.
Still if you have any queries or doubts, please write me back,
I would be happy to solve them.
Wish you a great health!