Infants with acute diarrhoea may vomit. However, the vomiting usually stops once the dehydration is corrected. If the oral rehydration solution is vomited, a smaller amount should be given slowly about 10 minutes later. The best way to avoid vomiting is to give small sips of fluid frequently by cup. If severe vomiting continues, a serious cause of the diarrhoea should be looked for, and continuous nasograstric or intravenous fluid must be started.
There is no role for antiemetics (drugs which stop vomiting) in the management of vomiting in children with acute diarrhoea. They can have serious side effects.