On the radial side of the thumb, about 0.1 inch posterior to the corner of nail. Sore throat, cough, asthma, epistaxis, fever, loss of consciousness, mania, spasmodic pain of the thumb.
Tonsillitis, coma,respiratory failure, epilepsy, fever. Expels wind (both interior and exterior), stimulates the dispersing and descending of Lung Qi, benefits the throat, opens the orifices and promotes resuscitation.
It is a Water point.
0
It is a Son point.
Obliquely upwards 0.1 inch, or prick to cause bleeding.