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(Attached Discussion)
When Qi and Blood circulate smoothly, they transform upward into milk and downward into menstruation. When the upper and lower parts are unobstructed and do not deviate from normal regulation, this is called a healthy person. If obstruction occurs where patency is required, it leads to pain, heat, swelling, and exudation. It is appropriate to wash with Chilongpi Decoction (Red Dragon Bark Decoction) and Tianma Tang (Gastrodia Decoction), and applying Erwu Feiwu Gao (Two-Ingredient Fly Black Ointment) and Feiwu San (Fly Black Powder) yields good results. In the initial stage, Huangqin Loulu San (Scutellaria and Rhapontic Rhizome Powder) or Huanglian Hufen San (Coptis and Lead Carbonate Powder) can be applied externally. Chuinai (Blown Milk), Dulru (Jealousy of Milk), and Ruyong (Breast Abscess) share the same pathological essence, differing only in severity. Mild cases are termed Chuinai and Dulru, while severe cases are termed Ruyong.

Formulas
Shengma Tuoli Tang (Shengma Supporting Interior Decoction) (also known as Neikuo Shengma Tang, sourced from *Jisheng Bahui Fang*), treats black-headed sores appearing between the breasts of women, where the sore top collapses forming a black eye-like depression.
Ingredients: Shengma (Cimicifugae Rhizoma), Gegen (Puerariae Lobatae Radix), Lianqiao (Forsythiae Fructus) (each 1.5 qian); Rougui (Cinnamomi Cortex), Huangbai (Phellodendri Cortex) (each 3 qian); Dangguishen (Angelicae Sinensis Radix Corpus), Huangqi (Astragali Radix), Zhigancao (Prepared Glycyrrhizae Radix et Rhizoma) (each 1 qian).

Formula for treating Dulru with breast sores (sourced from *Qianjin Fang*).
Ingredients: Fengfang (Vespa Nidus), Tuzhongtu from pig belly plate, Chezhetuzhongtu (soil from cart ruts) (equal parts; another version adds one ingredient, Cheguzhi/cart axle grease). The above three ingredients are ground into powder and mixed with vinegar for external application.

Huanglian Hufen Gao San (Coptis and Lead Carbonate Ointment/Powder) (sourced from *Qianjin Fang*)
Ingredients: Huanglian (Coptidis Rhizoma) (2 liang), Hufen (Lead Carbonate) (10 fen), Shuiyin (Mercurius) (1 liang, ground together until dissolved). The above three ingredients: grind Huanglian into powder, mix the three substances evenly.

Loulu San (Rhapontic Rhizome Powder), treats milk leaking at irregular times, accumulating internally, eventually forming an abscess, named Dulru.
Ingredients: Loulu (Euphorbiae Humifusae Herba) (1 liang), Huangqin (Scutellariae Radix) (1 liang, remove black heart), Mixianfen (Tapioca Starch) (0.5 liang). The above three ingredients are ground into fine powder, mixed with water to form a paste-like consistency, and applied on the breast.

Formula for treating Dulru (sourced from *Qianjin Fang*).
The above method involves burning a naturally dead snake to ash, mixing with pig fat (Zhu Gao) for application, which is highly effective.

Chilongpi Tang (Red Dragon Bark Decoction) (sourced from *Daquan Liang Fang*), treats breast sores.
Take Hulpi (Quercus variabilis bark), cut 3 sheng, add 1 dou of water, boil down to 5 sheng. Use cold in spring and summer, warm in autumn and winter. Divide to wash the breasts; also suitable for washing deep, chronic, ulcerated sores.

Tianmacao Tang (Gastrodia Herb Decoction) (sourced from *Daquan Liang Fang*)
Take Tianmacao (Gastrodiae Rhizoma herb), cut 5 sheng, add 1.5 dou of water, decoct to obtain 1 dou. Wash the breasts according to temperature preferences to relieve itching. This herb has leaves resembling hemp leaves, grows in winter, and its color is similar to gold.

Feiwu Gao (Fly Black Ointment) (sourced from *Daquan Liang Fang*)
Take the black smoke (lead tetroxide/Qian Dan) produced by burning Zhusha (Cinnabaris) to produce mercury (named Caizhe, scatter 2 qian, heat until dry and charred), Fanshi (Alumen) 3 liang calcined into powder, all sifted through silk.

*Bingbu Shouji* treats Dulru where the breast is hard and about to suppurate, aiming to dissipate it, and for early-stage breast redness; if not treated urgently, it can be fatal (sourced from *Zhouhou Fang*).
Take Lu Jiao (Cervi Cornu Deinchium) and grind on a stone to extract white juice for application. Reapply when dry. Avoid hand contact. Also, suck out yellow fluid using mouth suction. Within a day, it should dissipate. Another version involves burning...

One formula (sourced from *Bianchan Xuzhi*) treats Dulru. *Bianchan Xuzhi* states that postpartum milk should not accumulate; if foul fluids do not exit, they form internal heat knots, causing swelling.
Use Lianqiao Tang (Forsythia Decoction) to promote the discharge of foul heat toxins.

One formula (sourced from *Daquan Liang Fang*)
Apply fresh Shengdihuang Zhi (Rehmanniae Radix Juice) externally. If heat is felt, suck out the juice and spit it out. If not sucked out, accumulation will inevitably lead to abscess. Mixing with sour vinegar for application is also acceptable.

Treating Dulru (sourced from *Zhouhou Fang*).
Use dust from roof beams (Liangshang Chen), mixed with vinegar for application. Also treats genital swelling.

Treating female Dulru swelling.
Take Manjing Gen (Brassica rapa var. trilocularis root), crush raw, mix with salt, vinegar, soy sauce, and water, boil to extract juice for washing. Wash 5-6 times for recovery. Alternatively, crush and mix with egg white (Jizi Bai) for sealing application, which is also excellent.

Treating Dulru and abscess (sourced from *Bencao*).
Use a rice-grinding stone heated by boiling, apply hot compress to the breast. Take two stones, use alternately. Cover the breast with a towel, allowing heat to penetrate deeply dozens of times, until cured.

Treating female Dulru and breast abscess (sourced from *Bencao*).
Take Chezhi (Cartilage grease/Fat), heat and apply. Can also be taken with hot wine.

Treating Dulru.
Take Yumu Yao (Elm wood medicine), take 1 qian orally in one dose, effect is good.