It seems that she is suffering from acute gastroenteritis
which is causing fever, semi-solid stools, and abdomen pain.
You should maintain adequate hydration and give plenty of oral fluids and ors solution.The fever should be controlled as well with drugs like syp motrin, syp crocin
is an oral antibiotics
and will help in controlling bacterial infection.
The virus may also cause such symptoms and in that case symptomatic treatment is given.
You continue the drugs as prescribed by your doctor.