Feature:

Shu-Stream, Yuan-Source and Earth point of the Pericardium channel

Sun Si Miao Ghost point

穴位特点：

五腧穴之输穴（五行属土），也是心包经原穴；孙思邈鬼穴

Location：

At the wrist joint, between the tendons of plamaris longus and flexor carpi radialis, level with Shen Men HT-7.

The Location of Da Ling PC-7 from A Manual of Acupuncture by Deadman

Needling:

Perpendicular insertion 0.3 to 0.5 cun; oblique distal insertion along the carpal tunnel for carpal tunnel syndrome, 0.5 to 1 cun.

Actions:

1. Clears heat from the Heart and calms the spirit (清心热，安神)

2. Harmonises the Stomach and intestines (和肠胃)

3. Unbinds the chest (宽胸)

4. Clears the nutritive level and cools blood (清营凉血)

Indications:

1. Heart pain, palpitations, pounding sensation of the Heart, insomnia, epilepsy, mania, manic raving, propensity to laugh (without ceasing), agitation, weeping with grief, sadness, fright and fear.

心痛，心悸，心脏有锤击感，失眠，癫痫，狂躁，乱语，大笑不止，烦躁，悲恸哭泣，惊恐。

2. Fullness of the chest, pain of the chest and lateral costal region, shortness of breath, much sighing, breast abscess, breast pain.

胸满，胸胁疼痛，气短，善太息，乳痈，乳痛

3. Stomach pain, vomiting, vomiting blood, sudden turmoil disorder, intestinal abscess, foul breath.

胃痛，呕吐，呕血，急症，肠痈，口臭

4. Fever with agitation and absence of sweating or ceaseless sweating, all wind-heat disorders with absence of sweating, heat in the body like fire.

热病烦躁无汗或少汗，一切风热无汗证，身热若燔碳

5. Red eyes, yellow eyes, jaundice, throat painful obstruction, dry throat, pain at the root of the tongue, eczema of the hand, wind rash, carbuncles and furuncles, splitting headache.

目赤，目黄，黄疸，咽塞疼痛，咽干，舌根痛，手部湿疹，风疹，痈疖，头痛欲裂

6. Blood in the urine, difficult urination.

尿血，小便困难。

7. Swelling of the axilla, contraction of the hand, pain and contraction of the elbow, wrist pain, heat in the palms.

腋下肿，手部拘挛，手肘挛痛，手腕痛，手心脚心热。