Also known as rectal irrigation, an enema involves the injection of fluid into the rectum. In nature cure treatment, only lukewarm water is used for
cleaning the bowels. The patient is made to lie on his left side extending his left leg and bending the right leg slightly. The enema nozzle, lubricated
with oil or Vaseline, is inserted in the rectum. The enema can containing the lukewarm water is then slowly raised and water is allowed to enter into
the rectum. Generally, one to two liters of water is injected. The patient may either lie down on his back or walk a little while retaining the water. After
five to 10 minutes, the water can be ejected along with the accumulated morbid matter.