The pole can whip back at you also. If you're a beginner, lessons for proper technique will help prevent injuries. If you haven't skied since last season, start off your trip with a lesson. Your performance and enjoyment will be enhanced and a lesson will lessen your chance of injury. Cut a hole in the pad and place the hole over the sore spot.
Pressure then goes around the sore spot and on the pad.
Start on the side of the heel, go under the bottom of the foot and up the other side a couple of inches. Use successive strips along the length of the bottom of the foot. See a podiatrist for a biomechanical foot exam when you get home. Orthotics may be needed for walking shoes. In the meantime, a ski shop can provide temporary ski boot arch supports.