I'm sorry to hear you're still in such pain. That's awful!
Several months ago when I aggravated my siatic nerve (and had pain shooting down my back into my leg), I tried Advil and muscle relaxants and nothing helped. The doctor prescribed Celebrex---and it really helped. I took it for several weeks until the pain subsided. They told me it reduces the inflammation without upsetting your stomach like ibuprofen does. (and one of the Celebrex I took was equivalent to 3-4 ibuprofen.)
That's just a suggestion. I hope you get some relief. This is supposed to be a happy time for you!!!!!!!!