Water is the second most important element for the life of all living things. It has a number of properties, including medicinal ones. Healing the body with water using the methods of hardening, dousing, and rubbing has been known since ancient times. But even now they are no less relevant and are very suitable for those who prefer not to use drugs. The book presents methods of water treatment that are simple and effective to use. They do not require special devices, a lot of time or money.