My son had got Viral fever and after one week he got cured.after one week he got loose motions.it was also cured but from last two days again he's getting Why is this happening?

A. If it’s fever and lose motions again then you should get a stool test done for your child and if required blood test could also be good to get a clear picture about the reason behind loose motions as fever as this it’s very difficult to predict anything