“For indigestion, prick your finger with a needle and let the bad blood out.”
As my informant says, this is a remedy that is commonly used among Korean parents. Whenever someone is suffering from indigestion, the fastest and most relieving solution is to prick the tip of any finger and let a small amount of blood out.
Korean people believe in the existence of “bad” and “good” blood. Therefore, they believe that indigestion is a result of too much “bad” blood pooling in one life. In order to provide relief, the blood must be released so that the body can find some comfort.