I found this on Dr Greene' s website..Hope it helps...
\" The central concern with diarrhea is the possibility of dehydration from loss of body fluids. Treatment is aimed at preventing dehydration, the real culprit. Most children with diarrhea can be treated safely at home.
If your baby is breast-fed, don' t stop. Breast feeding helps prevent diarrhea (making diarrhea only half as likely) it also speeds recovery (Journal of Pediatrics, May 1996). If your baby still seems thirsty after or between nursing sessions, you can supplement with an oral rehydration solution (Pedialyte is the most well known, but other brands are also effective. Children in my practice seem to prefer the taste of grape-flavored KaoLectrolyte -- chilled).
If your baby is formula-fed, you might want to switch to a soy-based formula while the diarrhea lasts. A soy formula containing fiber (Isomil DF) can be even more effective at slowing down the stools (Clinical Pediatrics, March 1997). Do not dilute the formula. As with breast-fed babies, supplementation with an oral rehydration solution can help replenish the fluids and electrolytes that have been lost in the diarrheal stools.
If your baby is already big enough to be taking solid foods, then carrots, rice cereal, bananas, potatoes, and applesauce can help slow down the stools. Avoid fruit juices, peas, pears, peaches, plums, prunes and apricots until the stools are back to normal, which should be within a week or so.\"