Poor Starr.

Try Metamucil! This was the one thing that helped Lucas with his diarrhea. Also ask about Endosorb. It worked wonders on the babies Chip and Dale when they had diarrhea.

Neither of these things will "fix" whatever the underlying cause, but if it firms the stool, he may begin to feel better.

Is he on antibiotics right now? Could this be causing the diarrhea? Also, you can get (Lactose free) Lactobacillus acidophilus tablets in a drug store. Giving him that would be the same as giving him yogurt.