My daughter is 22 months old. She had suffered vomiting and diarrhea 16 days back. She had started with vomiting after any feed (even water), followed by diarrhea (loose motions) at least 15 times a day. She was just on ORS (no antibiotics given and only Oral ondansetron and Lansoprazole were given) and it stopped after 4-5 days. But she continued with foul smelling, pasty stools with a frequency of 5-6 till date.(i. E. After 16 Days). I don't know what to do?