Do they have a pain management clinic near you? They are the experts and will know all the tools that can be used.
There are some here that take methadone, or have pain patches which are quite strong too. Some people find taking nerve pain medications help them such as neurontin. There really are a lot of options out there, I hope you find something that works soon.
One last suggestion - a short trial of sleeping medication can often help to break the deprived sleep --> increased pain --> more deprived sleep cycle too.
There are some here that take methadone, or have pain patches which are quite strong too. Some people find taking nerve pain medications help them such as neurontin. There really are a lot of options out there, I hope you find something that works soon.
One last suggestion - a short trial of sleeping medication can often help to break the deprived sleep --> increased pain --> more deprived sleep cycle too.