凡患耳中策策痛者，皆是风入于肾之经也。不治，流入肾，则卒然变脊强背直成痉也。
若因痛而肿，生痈疖，脓溃邪气歇，则不成痉。所以然者，足少阴为肾之经，宗脉之所聚，
其气通于耳。上焦有风邪，入于头脑，流至耳内，与气相击，故耳中痛。耳为肾候，其气相
通，肾候腰脊，主骨髓，故邪流入肾，脊强背直。
耳耵聍者，耳里津液结聚所成。人耳皆有之，轻者不能为患；若加以风热乘之，则结硬
成丸核塞耳，亦令耳暴聋。
足少阴为肾之经，其气通于耳。其经虚，风热乘之，随脉入于耳，与血气相搏，故耳生
牙齿痛者，是牙齿相引痛。牙齿是骨之所终，髓之所养。手阳明之支脉，入于齿。若髓
气不足，阳明脉虚，不能荣于牙齿，为风冷所伤，故疼痛也。又有虫食于牙齿，则齿根有孔
，虫居其间，又传受余齿，亦绵疼痛。此则针灸不瘥，敷药虫死，乃痛止。
牙齿皆是骨之所终，髓气所养，而手阳明支脉入于齿。脉虚髓气不足，风冷伤之，故疼
痛也。又虫食于齿，则根有孔，虫于其间，又传受余齿，亦痛掣难忍。若虫痛，非针灸可瘥
，敷药虫死，乃痛止。
手阳明之支脉入于齿，齿是骨所终，髓之所养。若风冷客于经络，伤髓冷气入
齿根，则齿痛。若虫食齿而痛者，齿根有孔，虫在其间，此则针灸不瘥，敷药虫死，痛乃止
。其汤熨针石，别有正方。补养宣导，今附于后。
《养生方》云∶常向本命日，栉发之始，叩齿九通，阴咒曰∶太帝散灵，五老反
真；泥丸玄华，保精长存；左拘隐月，右引根；六合清练，百神受恩。咒毕，咽唾
三过。常数行这，使齿不痛，发牢不白，头脑不痛。
《养生方·导引法》云∶东向坐，不息四通，琢齿二七。治齿痛病。大张口，琢齿二七
，一通二七。又解，四通中间，其二七大势，以意消息，瘥病而已，不复疼痛。解病，鲜白
不梨，亦不疏离。久行不已，能破金刚。
又云∶东向坐，不息四通，上下琢齿三十六下。治齿痛。
Whenever one suffers from a stabbing pain in the ear, it is all due to Wind pathogen invading the Foot-Shaoyin Kidney Meridian (Kidney Channel of Foot-Shaoyin). If left untreated, the pathogen flows into the Kidney, suddenly causing stiffness of the spine and straightening of the back, developing into Jing Disease (spasm disease characterized by neck and back rigidity and opisthotonos).
If swelling occurs due to the pain, leading to the formation of carbuncles or furuncles, and the pus breaks out with the dissipation of the pathogenic factor, Jing Disease will not develop. The reason for this is that the Foot-Shaoyin Meridian is the channel of the Kidney, where numerous vessels converge, and its Qi connects with the ear. When Wind-Evil resides in the Upper Jiao, it enters the head and brain, flows into the ear, and clashes with the body's Qi, causing pain in the ear. Since the ear is the external manifestation of the Kidney, their Qi is interconnected; as the Kidney governs the waist and spine and dominates bone marrow, when the pathogen flows into the Kidney, it results in spinal stiffness and back straightening.
Earwax (Cerumen) is formed by the condensation of fluids in the ear. Everyone has it; mild cases do not cause harm. However, if invaded by Wind-Heat, it hardens into nodules that block the ear canal, also causing sudden deafness.
The Foot-Shaoyin Meridian is the channel of the Kidney, and its Qi connects with the ear. If this meridian is deficient, Wind-Heat takes advantage of the deficiency, entering the ear along the vessels and clashing with Blood and Qi, thus causing ear diseases.
Toothache refers to pain radiating between the teeth. Teeth are the extremities of bones, nourished by Marrow-Qi. The branch of the Hand-Yangming Large Intestine Meridian enters the teeth. If Marrow-Qi is insufficient and the Yangming pulse is weak, failing to nourish the teeth, they become injured by Cold-Wind, resulting in pain. Additionally, if worms eat away at the teeth, holes form at the tooth roots where the worms reside, spreading to other teeth and causing continuous pain. In such cases, acupuncture and moxibustion are ineffective; only applying topical medication to kill the worms will stop the pain.
Teeth are the extremities of bones, nourished by Marrow-Qi, and the branch of the Hand-Yangming Large Intestine Meridian enters them. If the pulse is weak and Marrow-Qi is insufficient, injury by Cold-Wind causes pain. Furthermore, if worms erode the teeth, holes form at the roots where the worms reside, spreading to other teeth and causing unbearable pulling pain. For worm-induced toothache, acupuncture and moxibustion cannot cure it; only applying topical medication to kill the worms stops the pain.
The branch of the Hand-Yangming Large Intestine Meridian enters the teeth, which are the extremities of bones nourished by Marrow-Qi. If Cold-Wind lodges in the meridians, damaging the Marrow and allowing Cold Qi to enter the tooth roots, toothache occurs. If the pain is caused by worms, holes appear at the roots where the worms reside; acupuncture and moxibustion are ineffective here, and only killing the worms with topical medication stops the pain. Regarding decoctions, hot compresses, acupuncture, and stone needles, there are separate specific formulas. Methods of tonification, nourishment, and guidance are attached below.
The *Yangsheng Fang* (Prescriptions for Nourishing Life) states: On days corresponding to one's birth year branch, at the beginning of combing hair, tap the teeth nine times while silently reciting the incantation: "Tai Di scatters spiritual energy, Wu Lao returns to truth; Niwan Xuan Hua preserves essence for long life; Left Ju hides the moon, Right Yin draws the root; Liu He is pure and refined, Bai Shen receives grace." After the incantation, swallow saliva three times. Practicing this regularly prevents toothache, keeps hair firm and white-free, and prevents headache.
The *Yangsheng Fang · Daoyin Fa* (Guidance and Pulling Method) states: Sit facing East, hold breath four times, and grind the teeth fourteen times (two sevens). This treats toothache. Open the mouth wide, grind the teeth fourteen times, counting this as one cycle, repeated twice. Another interpretation suggests that during the four breath-holding intervals, perform the fourteen grinding movements, regulating intent and respiration, so that the illness heals and pain ceases. Upon recovery, teeth remain fresh, white, intact, and not loose. Long-term practice without cessation can break through diamond-like hardness (symbolizing extreme resilience or strength).
It also states: Sit facing East, hold breath four times, and grind the teeth up and down thirty-six times. This treats toothache.