This section is from the book "The Hygienic System: Fasting And Sun Bathing", by Herbert M. Shelton. Also available from Amazon: The Hygienic System Vol III Fasting and Sun Bathing.
Bathing during the fast should follow the rules laid down for bathing in a preceding volume. The faster in particular should avoid extremes of temperature. Wash the body quickly and do not stay in the tub or under the shower for a prolonged period. A sponge bath should be used if the patient is too weak to take his or her own bath.