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Yin deficiency leads to the hyperactivity of deficient fire, with qi rebelling upward in the Liver channel. Blood follows the nose and flows out. If mild, it is not a matter for great concern; if prolonged, it is no different from hematemesis (vomiting blood). The treatment should employ cooling blood and promoting blood circulation methods. Use Huangqin (Scutellariae Radix) and Baiji (Bletillae Rhizoma), each two liang, made into water pills. Taking them yields miraculous effects. If symptoms are not severe, only external treatments are needed: one method is to apply wet paper to the nostrils to vent heat, targeting Stomach fire; another is to apply cold water to the back of the neck, targeting Bladder fire; a third is to tie a thread around the middle finger—tie the left hand for left-sided epistaxis, the right hand for right-sided epistaxis, and both hands if bilateral—targeting Pericardium collateral fire. These are all rapid methods for treating epistaxis (nosebleed).

The nasal orifice is often blocked, unable to perceive odors. Grind an iron lock on a stone to obtain powder, mix with pig fat, wrap in cotton, and insert into the nostril. Another prescription: use dried ginger as powder, mixed with honey, and inserted into the nostril.

Nasal hair suddenly grows to one or two chi in length within a day and night, gradually becoming thick and round like a rope. After plucking, it regrows, causing unbearable pain. This is caused by excessive consumption of pig and sheep blood. Use Sharen (Amomi Fructus) and Rushiang (Olibanum) made into rice pills. Take ten pills morning and evening with warm water, and the hair will naturally fall off.

Regarding the ears: (Kidney Qi communicates with the ears; ear diseases are attributed to the Kidney.) The Hand-Taiyang Small Intestine channel, Foot-Shaoyang Gallbladder channel, and Hand-Shaoyang Sanjiao channel all enter the ear.
In front of the ear, the Foot-Yangming Stomach channel ascends to the front of the ear, with tendons knotting there. The Foot-Shaoyang Gallbladder channel and Hand-Shaoyang Sanjiao channel both pass through the front of the ear. The Sanjiao channel originates from the front of the ear and connects to the eyes.
Behind the ear, the tendons of the Hand-Taiyang Small Intestine channel and Foot-Taiyang Bladder channel both travel to the Wanggu point behind the ear. The branch of the Foot-Yangming Stomach channel, the Foot-Shaoyang Gallbladder channel, and the Hand-Shaoyang Sanjiao channel all pass behind the ear.

(Also known as Ear-Back Toxicity.)
Sores appearing behind the ear should be treated according to Yin and Yang differentiation. Lesions that are white in color should be treated according to the principles for Yin Abscesses; lesions that are red should be treated according to the principles for Yang Carbuncles. If occurring behind the earlobe, it is called Ear-Root Toxicity, and the differentiation and treatment are similar.

Pus frequently discharging from the ear canal is called Nong'er (Suppurative Otitis). Redness, swelling, ulceration, and pus discharge is called Ting'er (Stagnant Ear). Pus and dampness forming clumps that block the ear canal causing sudden deafness is called Ding'er (Cerumen Impaction). All these conditions are caused by internal fire attacking and rushing upward. Treat with Longdan Xiegan Tang (Gentian Liver-Draining Decoction) plus Chaihu (Bupleuri Radix). Externally, use Hongmian San (Red Cotton Powder).
First scenario: Sudden severe ear pain, feeling as if insects are running inside, or blood/water flowing out, or unbearable pain. Use Shedui (Snake Slough) burned to ash while retaining its nature, ground into fine powder, and blown into the ear using a goose feather tube for immediate relief.
Hongmian San (Red Cotton Powder)
Haipiaoxiao (Sepiae Endoconcha) and Kufan (Alumen) (each three qian), Gan Yanzhi (Dried Swallow Nest/Collyrium? Note: Likely refers to a specific mineral or processed substance, literally "Dry Swallow Color", often interpreted as processed hematite or similar in ancient texts, but here kept as literal translation for accuracy to source term context or standard equivalent if known. Given "burned to retain nature", likely a mineral pigment or processed substance. We will use "Processed Hematite" or keep literal "Dry Swallow Color" if ambiguous. However, standard TCM herb list doesn't have "Gan Yanzhi". It might be a typo for "Dan Yanzhi" or similar. Let's stick to literal "Dry Swallow Color" or assume it's a specific local remedy. Actually, "Yanzhi" can refer to cinnabar or hematite. Let's use "Processed Cinnabar/Hematite" or simply transliterate if unsure. Wait, "Yanzhi" usually means vermilion/cinnabar. "Gan" means dry. So "Dry Vermilion"? Or perhaps "Swallow's Nest"? No, swallow nest is not burned. It is likely "Dan Yanzhi" (Cinnabar) or "Chi Shi Zhi". Let's look at context. Burned to retain nature. Likely a mineral. I will translate as "Processed Cinnabar" or "Vermilion" based on common usage of Yanzhi, though "Gan" is unusual. Alternatively, it could be a typo for "Shi Yan Zhi" (Earth Vermilion). Let's use "Processed Vermilion" to be safe, or just "Vermilion".) *Correction*: In some contexts, Yanzhi refers to Cinnabar. I will use "Cinnabar".
Muxiang (Moschus) (five fen)
Grind all together into fine powder, store in porcelain vessels for use. Blow a small amount into the ear or sprinkle on ulcerated areas for efficacy.
Nong'er Fang (Verified Formula)
Changpu Gen (Acori Tatarinowii Rhizoma) (washed clean with water)
Crush and extract juice. First, use a cotton swab to absorb the pus from the ear. Then, pour the Changpu juice into the ear to rinse. Repeat several times until healed.
Ding'er Fang (Verified Formula)
Dilong Fen (Eisenia Foetida Feces) Fudi Mo (Pot Bottom Ink/Soot) Sheng Zhu Zhi (Fresh Pig Fat)
Grind together uniformly, mix with Congzhi (Scallion Juice), shape into a date-pit form, wrap in cotton, and insert into the ear. Replace when moist.
Guishao Dihuang Wan (Standardized Pill for Ages 30-70)
Longdan Xiegan Tang (Standardized Decoction for Ages 9+)