I posted kitten under a week old. She also got the loose poo...with tiny bits of blood. In the emergency kit of KMR there is a little tube of this Bene-bac..i used it several times before on other kittens and it works..it is the live bacteria that they lose when they have watery stools. I think it worked..i gave him a few squirts in her mouth and it did seem to help. the pedialyte every other feeding seems to be helping her also. The only thing is her anus is swollen from the loose poops.