My son is 6 and a half years old. He had an upset stomach about 3 and a half weeks ago and was treated with antibiotics and probiotics. He was doing well and in the mean time I have started his usual diet with milk fruits and occasional eggs. But he had loose stools twice yesterday. He doesn't have any stomach pain or vomiting and is very active. I am also giving him Bournvita. Should I discontinue milk products? As he had exams next week could you please advice any medicine for loose stools that works fast.