Hi and welcome to YT
!
I'm sorry to hear your kiddo is ill, that can be so scary and stressful. My Wylie was diagnosed w/ Atypical Cushings about 1.5 yrs ago (as well as hypothyroid). He is on Lysodrean (aka mitotane), which is a chemo med - and takes it 3x a week. He has done great on this med! It can take a lot of time (and ACTH Stim tests) to get to the right dose (trial and error) - but with patience, the right combo will happen.
What med(s) is being suggested for her?
Does she have hair loss? If yes, did your vet mention Melatonin and how that helps?