hydrotherapy -
Any of various techniques that use water, either externally or internally, for the treatment of disease and for the soothing of pain.
Wikipedia
Hydrotherapy, formerly called hydropathy involves the use of water for pain-relief and treating illness. The term hydrotherapy itself is synonymous with the term water cure as it was originally marketed by practitioners and promoters in the 19th century. A hydrotherapist therefore, is someone who practices hydrotherapy.
OmegaWiki Dictionary
Ω
hydrotherapy The use of water for therapeutic purposes.
