Mud-therapy

I was looking through the Internet somedays ago and I founded an interesting therapy that exists since thounsand years ago. This thousand-year-old therapy joins two elements, such as water and earth like curative methods. The key is on the minerals that the mud and water contains.
A brief introduction in its history says that ancient civilizations that used to live near volcanoes, lagoons or seas used mud-therapy medicanls purposes and even to camouflage themselves.

But the common use of this technique was discovered through the time due to the physical improvements and the relieve of pain. How ever this therapy is also use for skin treatment.