There is a form of torture that was invented in Japan during the Kamakura period.
That's the snake torture.
This torture method was super-forced, just by forcing a snake into her mouth.
During the Sengoku period, the subject, whose hands and feet were bound, was put in a large bucket with a large number of snakes, covered, and beaten with a stick or set on fire from the outside. The snakes inside are frightened and start biting things other than themselves, and when the tub continues to heat up, the snakes try to escape the heat and enter the human hole from the mouth to the anus. Then, the snake, which has entered and has difficulty breathing, struggles and chews out its internal organs.