Is workers comp the only answer? You can't file it through your regular insurance where you pay a copay or percentage of the surger?
My husband had a discetomy about 7 months ago. Sounds like you need to have that operation asap before permanent damage takes place!!! My husband went to a neurologist. Ask around for a good one in your area. In most cases a discectomy will relieve the pain quick. However, my husbands was pretty bad (sounds like yours is too). It took him about 6 months before he stopped complaining. I'm sure now that he is glad he had the surgery.
Other options in the mean time are chiropractors... But your pain is so severe that I don't think I chiropractor could do any good.
I know you can get cortosone shots in your back...But that is only temporary relief.....
I would definitely go see a neurologist. They will understand how much pain you are in and should be able to prescribe proper anti-inflamatory and pain medicine until you can have the surgery done. He could probably even write a note to help with your workers comp case (as long as you don't go to a company doctor)