He is very limited in his movement due to advanced cancer. He basically sits in a chair at the kitchen table, in a lift chair in his living room, or is in bed. Due to his inactivity, he has developed a major ulcer/bed sore on his lower tailbone and on both heels. His home health care nurse bandaged them but he is uncomfortable sitting(even on a donut(rubber/vinyl). His OT mentioned air cushions are recommended with patients with ulcers/bed sores on their bottom. Has anybody used them? Are they effective? We have spent so much already on equipment that insurance won't cover. I don't have a problem investing in it if others have found them beneficial. Also, does anyone know if these air seat cushions are covered by insurance?