One very good natural remedy is to apply hydrated clay to the bed sores. It may look messy but it is effective big time. Just apply the clay and put a plastic on top of the clay to minimize the clay drying out. One can also put a thin sterile cloth bandage between the clay and the sore so that one side of the bandage is resting on the sore and the clay is on the other side of the bandage and the plastic on top of everything. change the dressing three times a day or as soon as the clay dries out. the good effects will be seen in a few days time, this is how good clay is.