Amy --
I'm sorry to hear about your husband and can imagine how difficult it is for you to see him in such pain.
Quite a few OCFers have successfully used the Duragesic (fentanyl) patches. Until they chime in here, you can do a search (top of each page, under the New Topic/Post Reply buttons) for either Duragesic or fentanyl and read about their experiences. Be sure to search in "all open forums" to maximize your results.
All the best,
Leslie