Whenever I get diarrhoea, my elders will tell me to drink boiled rice water. Really! All you need is to boil the rice in lots of water and drink.
Of all the ingredients here, the most potent is Rice, but not in the usual form we eat it in, and neither would rice porridge work too well.The secret is in rice water.
Mother boiled some rice in lots of water and went to their hotel with
two 1.5L bottles of rice water. To my surprise, it worked, and they were even able to go out for dinner the next day. Both were exclaiming how the rice water did the trick of making them well again.