We also change our dressings every treatment but we never use occlusive dressings. Our physicians only allow us to use gauze with tape. We found once we stop using occlusive dressings we had a decrease in infections. Our physicians feel the area needs the dryness not moisture which occlusive dressings tend to keep area moist. Some units only uses bandaids and they have had even less infection rate. Most our patients can only use paper tape which helps keep the skin from getting irritated.