For best results when using your foot file, soak your feet in warm or hot water and add oils, salts, soap or vitamins for best results. After your feet have soaked, dry your feet with a towel. Dry enough for the file to be effective but mist enough to stay soft.
Feel for rough spots on areas such as the ball, heel, top of toes and side of your feet. Flex your foot and hold the scrapper against the foot and use in a downward motion. Continue scraping the skin until all areas of the foot are smooth.
Run your hands over your feet and make sure skin is smooth. Moisturize your feet to keep your feet hydrated. For maximum effect massage your feet to increase blood circulation, relax muscles and relieve pain.