This is a very handy combination of gauze and cotton which can be purchased in most of the drug stores. It is very useful as packing gauze in the treatment of thrush. The patch has several layers of cotton and on both sides gauze. When using in the treatment of thrush as packing when the thrush cavity is deep enough it will take the whole patch, as the cavity gets smaller, split the pad in half, dip the gauze side into the reducine and pack it into the thrush cavity. The gauze makes it easier for removal, as plain cotton tends to get stuck and becomes more complicated to remove, especially if the horse is sensitive in the afflicted area.