You will need to know the story behind the sitz bath, the book is over 500 pages long.
The modern way is to sit on your toilet 15 minutes after a 1 hour hot bath, there is nothing to it, the device sprays cold water on your butt and this draws the mucus downward as it stimulates every nerve in your body, it is the most powerful method to restore the human body and stop death and cost nothing to do.