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According to *Zhizhi Fang*: When heat qi takes advantage of deficiency, it follows the meridians into the ear, accumulates and does not dissipate, causing pus to discharge intermittently; this is called Nong Er (Otorrhea). Treatment should employ Man Jing Zi San. Externally, equal parts of Shi Gao (Gypsum Fibrosum), Ming Fan (Alumen), Huang Dan (Lead Monoxide), Zhen Bang Fen (Tridacna Shell Powder), Long Gu (Fossilized Bones), and She Xiang (Moschus) are ground into powder. The ear canal is wiped with a bamboo stick wrapped in cotton, and the powder is applied. Additionally, fluid exists in the ear; if mild, it causes no harm. However, when Wind-Heat combats with this fluid, the fluid condenses into a nodule blocking the ear, causing sudden deafness; this is called Ding Er (Aural Impaction). Treatment should employ Si Wu Tang added with Qiang Huo (Notopterygii Rhizoma et Radix), Chai Hu (Bupleuri Radix), Huang Qin (Scutellariae Radix), Lian Qiao (Forsythiae Fructus), and Yuan Shen (Scrophulariae Radix) in equal parts. Externally, fresh pig lard, Di Long (Pheretima), and Fu Di Mo (Soot from the bottom of the cauldron) are ground finely in equal parts, mixed with scallion juice, shaped like a jujube pit, wrapped in thin cotton, inserted into the ear, moistened, and then removed.

Man Jing Zi San
Man Jing Zi (Viticis Fructus), Chi Shao (Paeoniae Radix Rubra), Sheng Di (Rehmanniae Radix), Gan Ju (Chrysanthemi Flos), Sang Bai Pi (Mori Cortex), Chi Fu Ling (Poria cum Rosin), Sheng Ma (Cimicifugae Rhizoma), Mai Dong (Ophiopogonis Tuber), Mu Tong (Akebiae Caulis), Zhi Cao (Prepared Licorice Root) (each 1 qian).
Boil two cups of water with three slices of ginger and two red dates until one cup remains. Take after meals.

Huang Long San treats Nong Er (Otorrhea).
Ku Bai Fan (Calcined Alum), Long Gu (Fossilized Bones, crushed), Huang Dan (Lead Monoxide), Yan Zhi (Carthami Flos, calcined) (each 1 qian), She Xiang (Moschus) (a small amount).
Grind the above into powder. First, use a cotton swab to remove pus and fluid from the ear, then sprinkle a small amount of medicine inside. Use daily, ensuring wind does not enter.

The Classic states: When Gallbladder Heat transfers to the Brain, it results in Xin Bi (Bi Yuan/Nasal Sinusitis). Bi Yuan is characterized by continuous discharge of turbid mucus. Wang Bing's commentary states that when Gallbladder fluid is not clear, it flows like a spring, hence the name Bi Yuan. This condition arises when the pulses of the Foot-Taiyang (Bladder) and Foot-Yangming (Stomach) are both excessive. Fang Feng Tong Sheng San added with Huang Lian (Coptidis Rhizoma) and Bo He (Menthae Haplocalycis Herba) may be used. The Foot-Taiyang governs exterior Wind-Cold, while the Foot-Yangming governs interior Heat. "Excessive Taiyang and Yangming" implies that exterior pathogenic factors and interior heat combat each other; over time, cold also transforms into heat, stagnating in the brain without resolving.

Nao Lou (Nasal Ozena/Atrophic Rhinitis) can be caused by Kidney Meridian deficiency-cold in the elderly, which is cured using Ba Wei Wan (Eight-Ingredient Rehmannia Pill) and other kidney-warming agents. (From *Yuan Zhu*)

Nasal congestion preventing the perception of odors, or occurring only during cold months, or triggered by slight exposure to Wind-Cold, recurring frequently. Laypeople often attribute this to Lung Cold, but acrid-warm unblocking medicines are ineffective. In fact, this is due to Fire Pathogens in the Lung Meridian; severe stagnation makes the patient prefer heat and dislike Wind-Cold, causing congestion upon cold exposure and flare-ups upon slight infection. The treatment method focuses on Clearing Metal (Lung) and Descending Fire, assisted by unblocking agents, yielding invariably effective results. If there was no prior nasal congestion, but sudden onset occurs due to accidental Wind-Cold exposure, resulting in heavy voice and clear rhinorrhea, treat solely as Wind-Cold.

Fang Feng Tong Sheng San
*Yuan Zhu* version removes Xiao Shi (Mirabilite) and Da Huang (Rhei Radix et Rhizoma); reduces Hua Shi (Talcum) and Shi Gao (Gypsum Fibrosum) by half; adds extra Xin Yi Hua (Magnolia Flower). Take three to five doses first, then switch to pills. Take seventy pills morning and evening with warm water.

Xiong Huang Wan treats Nasal Polyps.
Xiong Huang (Realgar, 0.5 fen), Ku Fan (Calcined Alum, 1 qian), Gua Di (Cucumeris Fructus, 2 qian), She Xiang (Moschus, a small amount).
Make into pills the size of beans for nasal insufflation. Also treats polyps.

Cang Er San treats continuous discharge of turbid nasal mucus, named Bi Yuan (Nasal Sinusitis).
Xin Yi Ren (Magnolia Bud, 5 qian), Cang Er Zi (Xanthii Fructus, 1.5 qian), Bai Zhi (Angelicae Dahuricae Radix, 1 liang), Bo He (Menthae Haplocalycis Herba, 1 qian).
Grind into powder. Take 2 qian mixed with scallion tea soup.

Formula for treating nasal flesh excrescences that are foul-smelling and painful to touch:
Apply powder of Bai Fan (Alumen) mixed with a small amount of Qing Fen (Calomel) to the lesion. It will liquefy and disappear shortly thereafter. Concurrently administer Sheng Shi Tang (Dampness-Overcoming Decoction) and Xie Bai San (Draining White Powder) for two doses. This condition arises because rich flavors accumulate Damp-Heat steaming at the Lung Gate, similar to mushrooms sprouting suddenly on land after rain.

Qian Hong San treats Lung Wind, characterized by red nose and sores.
Bo Shang Liu Huang (Imported Sulfur), Bai Fan Hui (Ash of Calcined Alum) (each 0.5 liang).
Grind into powder, add a small amount of Huang Dan (Lead Monoxide), and dye it to match the patient's complexion. Apply half a qian, moistened with saliva. After washing, apply again before sleep. Concurrently take Sheng Ma Tang ( Cimicifuga Decoction) and Xia Qing Wan (Green-Draining Pills) to eliminate the root cause.