Prettyday has a good idea. While it may not be a cure all for you, a better mattress can make a huge difference.One I would highly recommend is the Select Comfort Sleep Number. The commercials are not lying. I have a family member who suffered with sciatica for years. One week on that bed and he had not had the pain since the bed was purchased and that was 4 yrs ago. The relief to him was nothing short of a miracle. From going to barely walking some times for weeks and on all kinds of meds, to a back that does not bother him at all...that's saying something.
You might want to give it a try along with your medications.