When the feet are in hot water, the blood which is congesting distant parts of the body is brought to the dilated vessels in the feet and legs. Congestion of the brain, lungs, abdominal and pelvic organs can be relieved in this manner.

A hot foot bath is a local immersion bath covering the feet and ankles at temperatures ranging from 100° to 115° F (43°C- 46°C ). Hot foot baths increase blood flow through the feet and entire skin surface, relieving congestion in internal organs and brain. This type of bath also elevates the body temperature, relaxing tense muscles and increasing white blood cell activity.