Hello, thanks for the question.
symptoms usually last for 48-72 hours in
most cases. Promethazine
should help control nausea & vomiting
You do need to keep the hydration good. Small amounts of sport
drinks that contain electrolytes are good. You can take 2-4 ozs. of
this every couple of hours. When you can keep solid food , start with
gram crackers , sherbet or pudding. Keep it bland for a few days.
If you continue to have lot of diarrhea
and continued vomiting then
you need intravenous fluids and further evaluation.