It's scary.
How does it work:? Tie the prisoner to a thick pillar, with pepper and water mixed and poured on the prisoner's wounds, or directly into your eyes, nose or mouth, the whole process due to the stimulation of chili pepper, may have been kept awake, very painful.
Source: According to Ming history, Jin Yiwei commonly used 18 sets of torture, in general, as long as the prisoner was arrested, 18 kinds of torture equipment have to suffer once. Prisoners are difficult to withstand the "full penalty" (that is, let the prisoners in order to withstand the arms, shackles, sticks, sticks, sticks) five kinds of torture, Jin Yiwei also create a lot of new criminal law torture prisoners, are a ghost gate.
Reference:
Baidu Encyclopedia - Web Link