footbath

noun3

1. •
   A small basin or bath designed for soaking or washing the feet.
2. •
   The act of soaking or washing the feet.

   • Besides the above auxiliaries, our author occasionally recommends topical bleeding, exercise, friction, footbaths, &c. — 1827
3. •
   A liquid mixture, often medicinal, for soaking or washing the feet with.

   • Rosemary essential oil can be used alone or in combination with thyme oil and sage tea in a deodorizing footbath that also helps relieve aching feet. — 1998