My puppy has the runs ! help ?

I agree with Ash and Queen of the Spades. Try feeding her Boiled chicken and rice (plain) for a few days. Do you have a cat? She might be eating cat poop which makes them have HORRIBLE #3! eww Good luck with your dog! You should not put your animal to sleep until she is extremely sick and there is nothing to do about it... :( Again, best of luck! :D