I don't know the specifics - but documenting is a good thing.
like- what you are feeling , your pain levels, if you told pain dr about pain not being controlled and nothing was done or no med changes...
just jot down 4 times a day or whatever - if you have a major increase in pain when meds wear off that sort of stuff.
dates, times etc

all that will be good to have if they try to say you are not compliant...