How long was the taper off prednisone?  Most of us experience a return of our CH when coming off a prednisone taper unless the CH cycle ended coincidentally, or another preventative like verapamil was being taken at the same time and has reached a therapeutic level.

Stopping a protracted course of prednisone needs to be done gradually with a taper.  The length of the taper is usually dictated by the sustained dose of prednisone.  Stopping at too high a dose can cause problems as the adrenal's all but shut down during a protracted course of prednisone therapy and don't make enough.  If this is the case, Johnny needs to see the physician who prescribed the prednisone asap.

Take care,

V/R, Batch