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Ping An: This section, from the beginning of the chapter to "Yin Qiao," is found in *Ling Shu* (Spiritual Pivot), Volume 5, Chapter 23, "Re Bing" (Heat Disease). From "outer canthus of the eye" to the end, it is found in *Ling Shu*, Volume 5, Chapter 22, "Dian Kuang" (Mania and Epilepsy). Additionally, from the beginning to the end of the chapter, it appears in *Jia Yi Jing* (The Classified Classic of Acupuncture and Moxibustion), Volume 12, Section 4.

Redness and pain inside the eyes, starting from the inner canthus, should be treated by selecting points on the Yin Qiao Mai (Yin Heel Vessel) [Yin Qiao Mai (Yin Heel Vessel)]. The inner canthus is where the Yin Qiao Mai passes, so one selects the Shu (Transport) point of this vessel. Ping An: The character "Qiao" is written as "Qiao" in *Ling Shu* and *Jia Yi Jing*. The outer canthus of the eye is called Rui Ci (Acute Canthus); near the nose on the inner side, the upper part is called Wai Ci (Outer Canthus), and the lower part is called Nei Ci (Inner Canthus). There are three canthi in the human eye: the outer corner is Rui Ci, the upper part of the inner corner is Wai Ci, and the lower part is Nei Ci. According to *Ming Tang*, Rui Ci is lateral, and the part near the nose is Nei Ci. Ping An: In *Ling Shu*, "Rui" is written as "Dui"; there are three characters "Wei Nei Ci" under the part near the nose. Note: According to *Ming Tang*, Yuan's edition only cites *Ming Tang*.

Ping An: This section, from the beginning of the chapter to "later select Foot," is found in *Ling Shu*, Volume 5, Chapter 24, "Jue Bing" (Jue Disease), and also in *Jia Yi Jing*, Volume 12, Section 5. From "deafness without pain" to the end, it is found in *Ling Shu*, Volume 5, Chapter 26, "Za Bing" (Miscellaneous Diseases), and *Jia Yi Jing* corresponds to this.

Deafness with inability to hear, treat with Er Zhong (Ear Center) [Er Zhong (Ear Center)]. Er Zhong refers to points such as Ting Gong (Palace of Hearing) and Jiao Sun (Corner Sun). Tinnitus, treat with the artery anterior to the ear [Artery Anterior to Ear]. The artery anterior to the ear refers to points such as He Liao (Harmony Crevice) and Ting Hui (Hearing Meeting). Ear pain that cannot be needled indicates pus in the ear or dry scabs blocking the ear canal, resulting in hearing loss. Ear pain has two conditions: presence of pus or presence of dry scabs. If there is no hearing at all, needling is contraindicated; if sound can still be heard, needling is permissible. Sha (scab/crust), pronounced like Di. Di (blockage/impaction), pronounced as Jing. Ping An: "Sha Di" in *Ling Shu* is written as "Ding Chu"; *Jia Yi Jing* also writes "Sha Di," noting that another version writes "Ding Chu."

Deafness, select the junction of the nail and flesh at the tips of the little finger and the fourth finger (ring finger) of both hands and feet. First select Hand points, then select Foot points. The Hand Shaoyang (Lesser Yang) channel reaches the tip of the little and fourth fingers, which is Guan Chong (Gushing Water) point. The Foot Shaoyang channel reaches the tip of the foot's little and fourth fingers, which is Qiao Yin (Piercing Yin) point. Both channels enter the ear, so points from both are selected. Ping An: *Jia Yi Jing* writes "Shao Zhi" instead of "Xiao Zhi" (little finger) and omits "Ci Zhi" (fourth finger); note says: *Tai Su* writes "Xiao Zhi Ci Zhi." Tinnitus, select above the nails of the middle fingers of both hands and feet. Treat left disease with right points, and right disease with left points. First select Hand points, then select Foot points. The middle finger of the hand belongs to the Hand Jueyin Pericardium Channel; *Ming Tang* states it does not treat ear diseases. The middle toe of the foot is not reached by any of the Twelve Primary Channels. Currently, the middle fingers of both hands and feet are used to treat tinnitus; the reason for needling these points is unclear, possibly due to collateral connections via Mu Ci (Counter-Needling). Ping An: "Hand and Foot Middle Fingers" in *Ling Shu* and *Jia Yi Jing* is written as "Hand Middle Finger."

Deafness without pain, select Foot Shaoyang (Lesser Yang); deafness with pain, select Hand Yangming (Yang Brightness). The Foot Shaoyang primary channel enters the ear, and the Hand Yangming collateral enters the ear. Foot Shaoyang governs bones and nourishes the ear, so it is selected. Hand Yangming governs Qi and nourishes the ear, so it is selected when pain is present. Ping An: In *Ling Shu*, the character "Zhe" (person/one who) follows both instances of "Tong" (pain).