Intersecting point: foot yangming and foot shaoyang.

bubble_chart Etymology

The zygomatic arch is horizontally placed, resembling a joint. The acupoint is located below it, opposite to Shangguan (GB3).

bubble_chart Location

Xiaguan (ST7) acupoint
(adapted from "Meridians and Acupoints")

• Zhenjiu Jiayi Jing: "Below Kezhuren (GB2), in the depression below anterior auricular artery, where a foramen is present when mouth is closed, disappears when mouth is opened."

bubble_chart Anatomy

• Muscles: there is the parotid gland under the skin, which is the starting point of the masseter muscle.
• Nerves: zygomatic branch of facial nerve, auriculotemporal branch of mandibular nerve; the deepest layer is the mandibular nerve.
• Vessels: transverse facial artery and vein, the deepest layer is the maxillary artery and vein.

bubble_chart Manipulation

Perpendicular insertion or oblique insertion 0.5 to 1.5 cun toward the ear. No moxibustion.

bubble_chart Efficacy

Dispel wind, improve hearing, benefit jaw joint.

• Classical: tinnitus earache, toothache, jaw dislocation, vertigo, crooked mouth and eyes, pus in ear, deafness, swollen neck, chronic windstroke, tooth and gum pain, aversion to wind-cold and difficulty chewing, spasm.
• Modern: trigeminal neuralgia, facial nerve palsy, otitis media, temporomandibular joint arthritis.

bubble_chart Combinations

• Tinnitus and deafness: Xiaguan (ST7), Yangxi (LI5), Guanchong (TE1), Yimen ,Yanggu (SI5).
• Tooth decay pain: Xiaguan (ST7), Daying (ST5), Yifeng (TE17), Wangu (GB12 ).
• Trismus: Xiaguan (ST7), Jiache (ST6), Hegu (LI4), Waiguan (TE5) .
• Temporomandibular joint arthritis: Xiaguan (ST7), Tinggong (SI19), Yifeng (TE17), Hegu (LI4 ).
• Tinnitus, deafness, ear pain: Xiaguan (ST7), Ermen (TE21), Tinggong (SI19), Yifeng (TE17), Waiguan (TE5).