The role of bloodletting in the supreme yin

Bloodletting in Zhi Yin acts to regulate Qi, clear heat and diarrhea.
Zhi Yin, also known as Dui Yin. It belongs to the foot solar bladder meridian. It is located on the lateral side of the terminal segment of the small toes of the foot, 0.1 inch from the root angle of the toenail. Indications: Fetal malposition, stagnant labor, headache, eye pain, nasal congestion, epistaxis (nosebleed).
Bloodletting therapy refers to the method of treating diseases by releasing a small amount of blood through puncturing small superficial veins with a needle instrument such as a three-pronged needle or a skin needle or a small eyebrow knife. The effect of bloodletting in Zhi Yin is to regulate qi, clear heat and diarrhea, and can be used to treat headache, eye pain, nasal congestion and epistaxis.
It should be noted that bloodletting should not be used on pregnant women.
If bloodletting therapy is needed, it is recommended to go to a professional medical institution and be operated by a doctor.