Hydrotherapy, formerly called hydropathy and also called water cure, is a branch of alternative medicine (particularly naturopathy), occupational therapy, and physiotherapy, that involves the use of water for pain relief and treatment. The term encompasses a broad range of approaches and therapeutic methods that take advantage of the physical properties of water, such as temperature and pressure, to stimulate blood circulation, and treat the symptoms of certain diseases. Various therapies used in the present-day hydrotherapy employ water jets, underwater massage and mineral baths (e.g. balneotherapy, Iodine-Grine therapy, Kneipp treatments, Scotch hose, Swiss shower, thalassotherapy) or whirlpool bath, hot Roman bath, hot tub, Jacuzzi, and cold plunge. Uses Water therapy may be restricted to use as aquatic therapy, a form of physical therapy, and as a cleansing agent. However, it is also used as a medium for delivery of heat and cold to the body, which has long been the basis for its application. Hydrotherapy involves a range of methods and techniques, many of which use water as a medium to facilitate thermoregulatory reactions for therapeutic benefit. Hydrotherapy is used as an adjunct to therapy, including in nursing, where its use is now long established. It continues to be widely used for burn treatment, although shower-based hydrotherapy techniques have been increasingly used in preference to full-immersion methods, partly for the ease of cleaning the equipment and reducing infections due to contamination. When removal of tissue is necessary for the treatment of wounds, hydrotherapy which performs selective mechanical debridement can be used. Examples of this include directed wound irrigation and therapeutic irrigation with suction. Technique The appliances and arrangements by means of which heat and cold are brought to bear are: Packings, general and local (i.e. Liniment); Hot air and steam baths; General baths; Treadmills Sitz (sitting), spinal, head, and foot baths; Bandages or compresses, wet and dry; also; Fomentations and poultices, sinapisms, stupes, rubbings, and water potations. Hydrotherapy which involves submerging all or part of the body in water can involve several types of equipment: Full body immersion tanks (a "Hubbard tank" is a large size) Arm, hip, and leg whirlpool Whirling water movement, provided by mechanical pumps, has been used in water tanks since at least the 1940s. Similar technologies have been marketed for recreational use under the terms "hot tub" or "spa". In some cases, baths with whirlpool water flow are not used to manage wounds, as a whirlpool