my son 6 years old / male.he is suffering fever last 4 days and loose motion ( purely wateriform). some times vomiting also. he is telling no taste in the mouth. so tendency for vomitting. doctor gave a medicine , AUGMENTIN ES-600(amoxicillin trihydrate+potassium clavulanate). and now already he take the medicine two days(4 times/ 12 hrly). but still loose motion and fever also not reduced. the above said medicine correct or not....