Most have no problem taking prednisone every 24 hours. Your metabolism may be the culprit, using it up faster than most. I struggled with the same issue until I split my dose, taking morning and evening. It made a huge difference for me but then I got to deal with it messing with my sleep. After years on a split dose I was very apprehensive about going back to a single dose as my reduction schedule brought my dose down into the single numbers. Fortunately that was never an issue.

Treating PMR is a bit like shooting at a moving target - it's always changing. Once you have an understanding what it takes to control your initial issues, you'll have a starting point for listening to your body and figuring out what the next step is. It's a slow trip but you'll get there. Just don't let anyone put you on a fast reduction schedule for prednisone. Have seen too many train wrecks because people were told to get off prednisone quickly. Pred is our only friend in this fight.