Dog Losing Hair?

I have a beautiful baby blue Staffy who is 18 months old. Unfortunately she has been diagnosed with Cushings. She is supossibly the only pup to have this! We love her dearly and she's costing a fortune. I would like to know if anyone knows anything I can do to stimulate her hair growth, such as creams, shampoos, massaging, tablets, etc.? I'm pretty desperate to have her look as normal as possible. Please help me. Any advice would be great from public or vets. She is on Vetoryl 60 mg a day. I am thanking all you lovely people in advance. xxxxx