There are a few different medications which are given via the pump but the most common one used is Morphine.
There are sometimes combinations of medications given dependent on your needs. If you have spasms as a feature of your CRPS then Baclofen maybe added.
Clonidine, Marcaine, Pethidine are just a few also used but much less often than Morphine.
It is obvious that in USA there is less time spent in hospital post -op, with
"ERM" having only 2 nights.
Here we are here until our dose has been titrated to the dose which suits.Obviously that occurs once you are home in the USA.
As far as returning to work I think it would be dependent on the person and the type of employment.
The less vigorous type of job would be much easier to return to but physically it does not take much time to be painfree in the surgical sites.
Good luck, take care