Acupuncture
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EX-HN-2
Safety Warnings
- Deep needling contraindicated - shallow insertion only
Needle Depth
0.5–0.8 cun
Needle Angle
10-15° (Transverse)
Body Area
Face — Forehead
Location
DangYang EX-HN-2 is directly on the pupil line when the patient look straight ahead. It is also 1 cun within the anterior hairline.
Main Actions
- Expels Wind-Heat
- Eases pain
Indications
Headache
Migraine
Dizziness
Vertigo
Eye redness and swelling
Eye pain (ophthalmalgia)
Conjunctivitis
Nasal obstruction
Rhinitis
Common cold
Stuffy nose
Frontal headache
Stroke (apoplexy)
Commentary
Dangyang EX-HN-2 is not major Extra Point.
Its main function is to expel Wind-Heat and ease pain.
Classical Sources
As an extra point, Dangyang (當陽) does not appear in the earliest classical texts like the Huangdi Neijing. It was documented in later compilations of extraordinary points. The name "Dangyang" literally means "facing the Yang" or "towards Yang," referring to its location on the forehead—an area that faces upward toward the sun and Yang energy.
Extra points like Dangyang were systematically collected during the Ming and Qing dynasties, with texts such as Zhen Jiu Da Cheng (Systematic Classic of Acupuncture and Moxibustion) documenting their locations and indications based on empirical clinical experience.
How to Locate
The patient should look straight, so as to identify the vertical pupil line. DangYang EX-HN-2 is on pupil line and 1 cun within the anterior hairline.
Caution
This point is located near the supraorbital nerve and supraorbital artery/vein. Use transverse (subcutaneous) insertion only—do not needle perpendicularly or deeply. Avoid vigorous manipulation. When needling, direct the needle horizontally along the scalp to prevent deeper penetration. Exercise caution in patients on anticoagulants due to the vascular structures in this region.
Needle Angle
10-15° (Transverse)
Depth Category
Shallow
Standard Depth
0.5–0.8 cun
Needling Directions
0.5 cun transversely towards the site of the disorder or pain.
Expected Deqi Sensation
Local distension or numbness spreading across the forehead. Sensation may radiate toward the eyes or vertex. Due to transverse needling technique, the deqi sensation is typically mild and localized.
Moxibustion
Recommended
Duration: 5–10 minutes
Cupping
Contraindicated
Bloodletting
N/A
Gua Sha
Contraindicated
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