Ying (water) point.

[Origin]

between, gap. It is the second point of hand yang brightness large intestine meridian (LI), located in the space before this section, hence the name.

[Location]

Erjian (LI2) acupoint
(quoted from "Meridians and Acupoints")

• Lingshu‧Benshu: "Before this section";
• Zhenjiu Jiayi Jing: "The big finger of the hand refers to the front and inner side of this section.
• Xunjing Kaoxue Bian added: "The tip of the horizontal stripe sinks in the middle"; when making a fist, it is about the radial end of the horizontal stripe on the palm of the index finger.

[Anatomy]

• Muscles: superficial and deep flexor tendons.
• Nerve: Refers to the palmar proper nerve (median nerve), refers to the dorsal nerve (radial nerve).
• Vessels: dorsal and palmar arteries and veins.

[Manipulation]

Bend the finger and stab 0.2 to 0.3 inches shallowly.

[Efficacy]

Clearing heat, disinhibiting benifiting the pharynx, improving vision.

• Classical: blurred vision, epistaxis, toothache, sore throat, pharyngitis, swollen jaw, shoulder and back pain, excessive lying down and poor salivation, cold vibration, excessive tremors, crooked mouth and squinting eyes, disease caused by cold Hanre, headache, numbness of fingers.
• Modern: Orofacial disorders.

[Recipe]

• Toothache, headache, pharyngitis: Erjian (LI2), 三里.
• toothache: Quanliao (SI18), Erjian (LI2).
• Shivering and aversion to cold: Yinxi (HT6), Erjian (LI2).
• Shoulder and back: Erjian (LI2), Shangyang (LI1), Weizhong (BL40), Kunlun (BL60 ).