薛立斋曰∶妇人乳痈，多因小儿断乳后，
不能回化。又有妇人乳多，孩提少饮，积滞凝结。又有经候不调，逆行失道。又有邪气内郁，结成痈肿。初
发时切不宜用凉药，盖乳本血化，不能漏泄，遂结实肿，其性清寒，又加凉药，则阴烂宜也。唯凉药用之既破
之后则佳，如初发时，宜用南星、姜汁敷之，可以内消。更加草乌一味，能破恶血逐块，遇冷即消，遇热即溃。
更加乳香、没药以定痛，内用栝蒌仁、十宣散、通顺散间服之。
孙真人曰∶凡女人多患乳痈，年四十以下，治之多瘥，年五十以上，慎勿治之，治之多死，不治自得终天
年。
慎斋按∶以上二条，序治乳痈戒用凉药，并示人以可治不可治之法也。
朱丹溪曰∶妇人有忧怒抑郁，朝夕累积，脾气消阻，肝气横逆，遂成隐核如棋子，不痛不痒，数年而发，
名曰奶岩，以疮形似岩穴也，不可治。
薛立斋曰∶乳岩乃七情所伤，肝经血气枯槁之证，不赤不痛，内有小核，积之岁月渐大，内溃深烂，为难
治。因肝脾郁怒，气血亏损故也。治法∶ 痛寒热初起，即发表散邪，疏肝清胃为主，宜益气养荣汤、加味
逍遥散，可以内消。若用行气破血，则速其亡矣。
武叔卿曰∶乳岩之病，大都生于郁气。盖肝主怒，其性条达。郁而不舒，则屈其挺然之质。乳头属厥阴，
其气与痰，时累积而成结核。兹以风药从其性，气药行其滞，参、 、归、芍补气血，枳实、乌药、木通疏利
壅积，柴、防、苏叶表散，白芷腐脓通荣卫，槟榔
通滞下行，官桂行和血脉。且曰木得桂而枯，为伐肝之要药。
慎斋按∶以上三条，序乳岩之证也。病虽均在乳，而有痈与岩之分。痈轻而岩重，痈之来也骤，而岩之成也
渐，故治痈易而治岩难。大抵痈属外感之风热，内伤之浓味，儿吮俱多；岩本于七情郁怒，脏气不平，肝脾
亏损。故治岩之法，与治痈微有不同，一宜补少而泻多，一宜泻少而补多也。
薛立斋说：妇女患乳痈，多是因为婴儿断奶后，乳汁不能正常回化吸收。又有妇女乳汁过多，而幼儿饮用量少，导致乳汁积滞凝结。又有因月经失调，经血逆行失道者。又有因邪气在内郁结，形成痈肿的。初发时切不可以使用寒凉药物，因为乳汁是由血液化生的，若不能通畅漏泄，就会结实肿胀，其性质本属清寒，如果再添加寒凉药物，就会导致阴寒腐烂。只有在痈肿已经破溃之后，使用寒凉药物才适宜；如果在初发阶段，宜用南星、姜汁外敷，可以使内里的病灶消散。再加一味草乌，能破除恶血、驱散肿块，遇冷则消散，遇热则溃破。再加乳香、没药以定痛，内服栝蒌仁、十宣散、通顺散交替服用。
孙思邈说：凡是女子多患乳痈，年龄四十以下的，治疗大多能痊愈；年龄五十以上的，千万不要治疗，治疗大多会死亡，不治疗反而能安享天年。
慎斋按语：以上两条，阐述了治疗乳痈时禁止使用寒凉药物的原则，并展示了哪些情况可治、哪些不可治的方法。
朱丹溪说：妇女若有忧愁愤怒抑郁，日积月累，导致脾气受阻，肝气横逆，于是形成隐伏的核块如棋子大小，不痛不痒，数年之后发作，名叫“奶岩”，因为疮形像岩穴一样，属于不可治疗的病症。
薛立斋说：乳岩是由于七情所伤，导致肝经气血枯槁的证候，患处不红不痛，内有小核，经过岁月积累逐渐变大，内部溃烂深重，属于难治之症。这是由于肝脾郁怒，导致气血亏损的缘故。治疗方法：在出现疼痛、寒热等初起症状时，即以发表散邪、疏肝清胃为主，宜用益气养荣汤、加味逍遥散，可以使内里消散。如果使用行气破血的方法，则会加速死亡。
武叔卿说：乳岩这个病，大多生于郁结之气。肝主怒，其性喜条达舒畅。郁结而不舒展，就会屈折其挺拔的本质。乳头归属于足厥阴肝经，其气与痰湿时常累积而形成结核。这里用风药顺应肝性，用气药运行其滞涩，用人参、（此处原文缺字，推测为黄芪或类似补气药）、当归、白芍补益气血，用枳实、乌药、木通疏利壅积，用柴胡、防风、苏叶解表发散，用白芷排脓通调营卫，用槟榔通导滞气下行，用官桂调和血脉。并且说“木得桂而枯”，官桂是伐肝的要药。
慎斋按语：以上三条，阐述了乳岩的证候。病虽然都在乳房，但有乳痈和乳岩的区别。乳痈轻而乳岩重，乳痈发病急骤，而乳岩形成缓慢，所以治疗乳痈容易而治疗乳岩困难。大抵乳痈属于外感的风热和内伤的浓味饮食，以及婴儿吮吸过多所致；乳岩本于七情郁怒，脏气不平，肝脾亏损。所以治疗乳岩的方法，与治疗乳痈略有不同，乳岩宜补少泻多，乳痈宜泻少补多。
Xue Lizhai stated: In women, breast abscess (Ru Yong) is often caused by the failure of milk to be reabsorbed and transformed after weaning. It may also result from excessive milk production in the mother while the infant drinks little, leading to stagnation and condensation of milk. Other causes include irregular menstruation with retrograde flow, or internal accumulation of pathogenic factors forming a swelling. At the initial stage, it is strictly contraindicated to use cold-natured medicines. Since milk is transformed from blood, if it cannot drain freely, it solidifies and swells; its nature is clear and cold. Adding cold medicines would lead to yin-type rotting. Cold medicines are only appropriate after the abscess has ruptured. For the initial stage, applying Arisaema Cum Bile (Nanxing) mixed with ginger juice externally can resolve the internal condition. Adding Aconitum Carmichaelii Lateralis Radix Preparata (Caowu) can break down bad blood and disperse masses; it dissipates when cold and suppurates when hot. Additionally, using Frankincense (Ruxiang) and Myrrh (Moyao) can alleviate pain. Internally, administering Trichosanthis Semen (Gualouren), Shixuan San, or Tongshun San alternately is recommended.
Sun Simiao stated: Women frequently suffer from breast abscess. For those under forty years old, treatment usually leads to recovery. For those over fifty, treatment should be avoided; treating them often results in death, whereas leaving them untreated allows them to live out their natural lifespan.
Shen Zhai commented: The above two passages outline the prohibition against using cold medicines in treating breast abscess and indicate methods for distinguishing treatable from untreatable cases.
Zhu Danxi stated: Women who experience chronic worry, anger, and depression accumulate these emotions day by day, obstructing Spleen Qi and causing Liver Qi to invade horizontally. This forms hidden nodules the size of chess pieces, which are neither painful nor itchy, and manifest after several years. This condition is called "Breast Rock" (Nai Yan) because the lesion resembles a rocky cave; it is considered incurable.
Xue Lizhai stated: Breast Rock is a syndrome caused by emotional injury, resulting in exhaustion of Qi and Blood in the Liver Meridian. The affected area is neither red nor painful, containing small nodules that gradually enlarge over time, eventually leading to deep internal ulceration and rotting, making it difficult to treat. This is due to Liver and Spleen emotional stagnation causing Qi and Blood deficiency. Treatment method: When symptoms such as pain, aversion to cold, and fever first appear, the primary approach is to release the exterior and dispel pathogens, soothe the Liver, and clear the Stomach. Yi Qi Yang Rong Tang and Jiawei Xiaoyao San are suitable to resolve the condition internally. Using Qi-moving and Blood-breaking methods would accelerate death.
Wu Shuqing stated: Breast Rock largely arises from stagnant Qi. The Liver governs anger and prefers free flow. When stagnant and unrelieved, it twists its upright nature. The nipple belongs to the Foot-Jueyin Liver Meridian; its Qi combined with Phlegm accumulates over time to form nodules. Here, wind-dispelling herbs are used to follow the Liver's nature, Qi-regulating herbs move stagnation, Ginseng Radix et Rhizoma (Renshen), Angelicae Sinensis Radix (Danggui), and Paeoniae Radix Alba (Baishao) tonify Qi and Blood, Immature Bitter Orange Fructus (Zhishi), Lindera Root Rhizoma (Wuyao), and Akebia Caulis (Mutong) relieve congestion, Bupleuri Radix (Chaihu), Saposhnikoviae Radix (Fangfeng), and Perilla Leaf Folium (Suye) release the exterior, Angelica Dahurica Root (Baizhi) drains pus and regulates Ying and Wei, Areca Seed Semen (Binglang) guides stagnation downward, and Cinnamomi Cortex (Guigui) harmonizes the blood vessels. It is said that "Wood withers when meeting Cinnamon," making Guigui an important herb for subduing the Liver.
Shen Zhai commented: The above three passages describe the syndrome of Breast Rock. Although the disease occurs in the breast, there is a distinction between abscess (Yong) and rock (Yan). Abscess is mild and Rock is severe; Abscess appears suddenly, while Rock develops gradually. Thus, treating Abscess is easy, but treating Rock is difficult. Generally, Abscess is caused by external Wind-Heat, internal damage from rich foods, and excessive infant suckling. Rock originates from emotional stagnation and anger, disharmony of Zang-Fu Qi, and Liver-Spleen deficiency. Therefore, the treatment for Rock differs slightly from that for Abscess: Rock requires more purging and less tonifying, whereas Abscess requires less purging and more tonifying.