Yes, make her go for a walk!

Chronic pain-state is depressing both to the mind and to the body, and the only way to interrupt it is through physical activity. Whatever physical activity she will do. (Knitting/painting/drawing counts!)

When the body is used to being in pain, even if it's medicated, it begins to interpret all sensory input as some sort of pain. Getting moving is hard, but once it gets moving it begins to recalibrate sensory input so that non-pain is interpreted correctly.

Spinal pain really s*cks, but doing something physical can make a huge difference.

(our chronic pain patients are always amazed at what a change they feel in their pain intensity)