I know I already posted about the rock salt used on the walkways where I live but I am stumped again. We have 3+ feet of snow now and it is due to snow for the next four days so we are both limited to walking on the treated areas since the snow is over Sully's head and I have a physical disability that makes it hard to walk in deep snow. The combination of ice, extreme cold and rock salt on the plowed and shoveled areas burns the foot pads. Other dog owners here have resorted to carrying…