Don't forget that it can also take a year for your cortisol level to improve after you can stay on a low enough dose of Prednisone. My endocrinologist said 3 mg of Prednisone for "an extended period of time" should be low enough to give my adrenals a chance to recover. My endocrinologist said for "as long as it takes" but I might need to take a small amount of Prednisone for the rest of my life.

I was on Prednisone for 12 years and still got off Prednisone so never lose hope!