How to make a sling
With thanks to St John Ambulance.
1. Find a piece of cloth that is about 5 feet (1.5 meters) wide at the base and at least 3 feet (1 meter) long on the sides.
2. Cut a triangle out of a piece of this cloth. If you don't have scissors handy, fold a large square piece of cloth diagonally into a triangle.
3. Place the person's elbow at the top point of the triangle.
4. Adjust the sling so the arm rests comfortably, with the hand higher than the elbow.
5. Tie the sling together at the side of the neck and pad the knot for comfort.
6. If the sling was placed correctly, the person's arm should rest comfortably against his or her chest with the fingertips exposed.