1.Mastitis, insufficient milk production, and other breast diseases; 2. Coma, febrile diseases, and other acute and heat-related conditions; 3. Headache, nosebleed, eye opacity, stiff neck, sore throat, and other head and facial diseases of the five senses.

On the ulnar side of the distal phalanx of the little finger, 0.1 cun from the corner of the nail. (This acupoint is paired, one on each side)

Extend the fingers with the palm facing down. Along the line at the base of the little fingernail and the ulnar side edge of the little finger (which is the junction line between the palm and the back of the hand, also referred to as the boundary between the red and white skin), the point approximately 0.1 cun from the nail corner is the location of this acupoint.