@laura1970 I have Arachnoiditis & it is far worse than regular back pain, leg pain etc. It is horrendous. I wouldn't recommend anything that might contribute to this disorder. it is hell on earth My trial of the pump, is doing nothing for me. think it's because of the severe Arachnoiditis, that i have (plus severe arthritis everywhere, especially between all my hardware. Sorry, i can't be more positive, but i've lost 25 plus years to all this, & i am old, depressed & broke