If she is a good friend of yours, then she should expect the truth from you. Knowing that you are a breeder, one would think your friend (should she truly have the best interests of the puppy at heart) would consult you in this matter or, at the very least, listen when it comes to vet care. It makes me wonder just what exactly her intentions were when getting the puppy, aside from the obvious itch we all suffer! If she were really thinking long-term, you would think she would have absorbed at least some knowledge and care information from you during the course of your friendship.
I sure hope this poor baby doesn't end up neglected or abandoned.