Lumbar support can be used in conjunction with a lumbar pillow to provide additional relief for certain conditions. A lumbar pillow may be added behind your lower back to help support your back. The lumbar pillow is usually placed at or near your lower back, but can be moved to the point where it meets or touches the tops of the buttocks. It should not cause discomfort, and should be firm enough to provide support without causing pain. The lumbar pillow may be used in conjunction with a lumbar support cushion.Lumbar support cushions do not need to cover your entire back.