Sorry, I didn't answer your question below. The H has chronic back issues. Last year he was diagnosed with spinal stenosis in his lower back and the spine center recommended a steriod injection. He scheduled that but the pain got markedly better before the appointment so he cancelled and has been doing well for 6 months. It flaired up again last week and he called today to schedule and is waiting to hear back from his dr. He can't sit or stand long and the only way he's comfortable is to lay on his left (uneffected) side.