Take a look at this article too. http://www.babychakra.com/learn/1087-what-to-feed-when-your-child-is-down-with-cold-cough-fever-or-diarrhea

This sounds like diarrohea. You should visit a pediatrician. It is caused by rotavirus which affects the intestine and prevents absorption of nutrients from the food consumed. Once the baby/kid has loose motion , they lose weight, grows weak and tired due to the dehydration.  It occurs as frequent loose motions with or without vomiting . In babies, the consistency of the poop could be very runny filled with mucus and phlegm. In older kids, it occurs as irritation, tummy ache and frequent bowel movements. 1. Hydration ORS could be given. ORS packets are easily available in medical stores. If the ORS packets are not available, 1 teaspoon of sugar and equal amount of salt can be mixed in the cooled boiled water and provided after each bowel movement. This helps to restore the water and iron lost. 2. Food Boiled potatoesBoiled pasta (for older kids)Arrow root powder with a little salt made in to a runny porridge with water/curdKanji paani /gruel water. If the kid can have whole rice, you can give it as wellPomegranate juiceSteamed kerala banana or kerala banana mash without gheeORS solution every 2 hoursTender Coconut water /nariyal paani / ilaneerSoups. 3. Hygiene Always sanitize the area where the kid/baby plays  by cleaning with a good floor disinfectant cleaner.Always wash yours and your baby/kid’s hands with hand wash /anti bacterial wipes.