A Foot Wound, Caused by Rubbing Shoes
Puzzle 10 of Justin Timberlake Piece of Cake Pack
Question is: A Foot Wound, Caused by Rubbing Shoes
and the answer is: BLISTER
Word Meaning:
BLISTER — A small bubble between the layers of the skin that contains watery or bloody fluid and is caused by friction and pressure, burning, freezing, chemical irritation, disease, or infection.
Definitions from Wiktionary.