Common standards of practice include using two opioid dosing types -- long acting medication to control baseline pain, and immediate release medication to handle breakthru pain.
Perhaps you need both?
I suggest that you keep a pain diary during the month to document your pain level vs activity to demonstrate your need for breakthru medication.
Here's the "big secret" that nobody has/is/will ever say out loud: pain medication does NOT kill pain.
Opiate pain medication causes euphoria, and it is the euphoria that makes the mind "not notice" the pain so much.
When a person has a pain or issue that responds to Advil (sprained shoulder, or whatnot), and they take an Advil, the pain *truly does go away.* (Of course, lots of times the pain doesn't totally go away, but often, it does!)
So, it is safe to say that in certain circumstances, Advil "makes pain go away," and it "kills the pain."
Conversely, opiates do NOT kill the pain, or make it go away. If you are expecting an opiate to do that, you'll be 'expectin' for a long time! Opiates do something to the mind (scientists don't truly understand exactly what's going on -- they have all their fancy charts, and theories about 'opiate receptors' -- ever seen one? LOL), causing the mind to "not focus too much" on pain. Any kind of pain -- physical and emotional and mental.
That is why, when you ask someone that has just taken an opiate if they still feel the pain in their arm/leg/shoulder/back/whatever, the truthful answer is, "yes, I feel the pain.... but it doesn't bother me as much."