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This point, on the lateral chest, unbinds the chest, regulates Heart and Lung qi and resolves phlegm nodules.
Location
On the chest, in the fourth intercostal space, 1 cun lateral to the nipple and 5 cun lateral to the anterior midline.
Anatomy
Pectoralis major and minor; the thoraco-acromial and lateral thoracic arteries; the fourth intercostal nerve and the medial and lateral pectoral nerves.
Actions & Functions
- Unbinds the chest and regulates qi
- Resolves phlegm and dissipates nodules
- Activates the channel
Indications
Fullness and pain of the chest and costal region, cough, phlegm nodules and swelling of the axilla, and breast disorders.
Needling
0.1-0.3 cun oblique or transverse insertion laterally.
Moxibustion Suitability
Moxibustion may be used with caution.
Point Combinations
With PC-6 for chest oppression; with ST-40 to resolve phlegm.
Classical Text References
A meeting point of the Pericardium and Gall Bladder channels, used for disorders of the chest and axilla.
Cautions & Contraindications
Deep perpendicular insertion risks pneumothorax. Needle obliquely or transversely only.
Latest Research
Latest peer-reviewed research on this point will be summarised here, with citations linked to PubMed, via our research integration.
