It could be from the 6 in 1 rotavirus side effect or stomach flu. My second born had it for a week or two. We apply Densitin Max Cream twice a day. Changed to Soy Based Milk - Isomil . Then after a long recovery she was better then I change her milk back to the previous brand. It will take long esp for kids hence nothing can be done. However, as long as you are giving probiotic, change milk, regular check on diaper, apply the right cream it should be okay.
itsallabout_mytwokids