Re: Problems with pain in the butt
That confuses me. With piriformis syndrome, it usually hurts most when the person is active, walking, sitting, etc. and lying down provides some relief.
Does your sister spend a lot of time sitting? It may be that her sitting posture is putting stress on a ligament that is causing the pain.
The pain could also be caused by a joint in the pelvis or lumbar spine being out of alignment. There might be some arthritis in the sacroiliac joint. That is the type of thing that can hurt more at night.
I guess if the pain persists, your sister may want to see a doctor to rule out any serious, non-spine related issue.
Does it feel any better when she applies either ice or heat?