When you are hiking, biking, skiing, backpacking or whatever causes boot pain to your foot, after a hot spot develops, but before the blister rises [you must nip it in the bud], then pull off a tuft of wool about the size of a cotton ball and place it on the skin area hot spot. There is no paper, plastic or glue.
While carefully holding the ball in place, pull your sock over the ball and press them together. The wool fibers weave themselves into the sock fibers, like Velcro, and it stays in place.
A $14 packet is large enough for a season. Go to www.enzeesfootsoother.com.