It seems to be an infection of the gut. The medicines that she received are good enough.
I would not be bothered if the color is green. It would be good to know the frequency of stool, consistency of the stool and presence of blood. These are something which helps to take good opinion. If the consistency is normal and frequency is less than 3 per day. You should not be worried at this moment.
I wish you wait and watch with the regular medicine. Keep your doctor posted. Liver
function tests and Ultrasound
abdomen would be the ideal next investigations to be conducted along with careful stool examination.
Hope this helps.