Add 1/2 cup dried chamomile flowers (I use chamomile tea) and 1/2 cup dried sage leaves to one cup oatmeal. Place in a cotton sock (or the cut off foot of some old pantyhose) and tie tightly. Steep in bath water for a few minutes, and then use mixture as a body scrub. If you don't like the smell of these herbs, another great combination is dried rose petals and lavender.
Peppermint Sugar Foot Scrub
In a small bowl combine 1/2 cup raw sugar with just enough olive oil to moisten. Add three drops of peppermint essential oil. Soak feet, the rub sugar mixture over feet.