Sorry to hear, still miss my Jack I put down a year ago. My best friend for 14 1/2 years
Similar situation, regret putting her on prednisone (nasty $hit). Best wishes...
Prednisone gave my buddy about an extra six weeks of feeling well after his cancer diagnosis. Brought him back from the brink of death to feeling and acting his old self again, and it was able to do that for about six weeks with gradually increasing doses, till it stopped working, then he crashed fast. You have to have a vet put your dog down as soon as prednisone stops working, because they go down fast after that. You can't delay at that point. Not even by a day.