Hi and welcome to the forum.
Thank you for having a compassionate heart and wanting to help Vicki.
Calcinosis Cutis can be very difficult to resolve and you have already heard from our resident expert, Angela. As she mentioned, her Sabre treated with lysodren, which may be a better choice of treatment for dogs with
calcinosis cutis. Dr. David Bruyette, one of our country's reknown veterinary endocrine specialist, stated in one of his lectures that his facility (VCA West Los Angeles) has not had good luck with resolving the
calcinosis cutis in dogs being treated with Vetoryl (Trilostane). VCA West Los Angeles treats hundreds of dogs with cushing's so they have lots of experience under their belt. If your friend's vet is out of suggestions, you may want to ask her to ask the vet to contact Dr. Bruyette to discuss Vicki's case.
http://www.vcahospitals.com/west-los-angeles