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 1800s. A hydrotherapist therefore, is someone who practices hydrotherapy. According to the International SPA Association (ISPA), hydrotherapy has long been a staple in European spas. It’s the generic term for water therapies using jets, underwater massage and mineral baths (e.g. balneotherapy, Iodine-Grine therapy, Kneipp treatments, Scotch hose, Swiss shower, thalassotherapy) and others. It also can mean a whirlpool bath, hot Roman bath, hot tub, Jacuzzi, cold plunge and mineral bath. These treatments use physical water properties, such as temperature and pressure, for therapeutic purposes, to stimulate blood circulation and treat the symptoms of certain diseases.