1 You can also drink ginger tea two to three times a day to cure diarrhea. 2  Slice one small piece of ginger and add them to one cup of water. 3  Boil the water for a few minutes, strain it and add some honey before drinking it.4  If fresh ginger is not available, you can use powdered ginger from your spice rack. Avoid drinking water immediately after eating it. 2  You can also drink ginger tea two to three times a day to cure diarrhea. 3  Slice one small piece of ginger and add them to one cup of water. 4  Boil the water for a few minutes, strain it and add some honey before drinking it.