Hot spring is a natural therapy. Most chemicals will precipitate on the skin, changing the pH of the skin, so they have the functions of absorption, precipitation and removal. Its chemicals can stimulate the autonomic nervous system, endocrine and immune systems. Although hot springs are good for health, some people say that they can treat skin diseases, heart diseases … and eliminate fatigue. Many places with hot springs in China have set up hospitals with convalescent institutions to treat skin diseases with hot springs.

Hot springs have different curative effects according to different springs. In summary, the following references are provided: