味苦温无毒，入肺、脾二经，年久者良，去白用。
香橼，理气止呕，健脾进食，性虽中和，单用多用，亦损正气，脾虚者，须与参
术并行，乃有相成之益耳。
禀地二之气，兼得天五之气以生，故其味苦重甘微，气平无毒。思邈言辛，盂诜言
温，亦皆有之。入手足厥阴经，夫血者阴也，有形者也，周流乎一身，一有凝滞则为
瘕，瘀血血闭，或妇人月水不通，或击扑伤损积血，及心下宿血坚痛，皆从足厥阴受
病，以其为藏血之脏也。苦能泄滞，辛能散结，甘温通行而缓肝，故并主之，所以为蓄
血症必需之药。且桃为五之木精，能镇辟不详，故主邪气，味苦而辛，故能杀小虫，虽
云∶苦能去滞甘能生新，但苦重甘微气薄，味浓沉而下降，故泻多补少，散而不收，用
之不当，及过用多用，使血下不止，损伤真阴不可不慎。桃岛一名桃奴，是桃实着树经
冬不落者，得气尤全，正月采用，盖桃为仙木、五木之精也，最能辟邪，故用杀诸精
鬼，中恶腹痛，五毒不祥，其苦温之性，又能通滞散邪，故治血之功，与桃仁同，鬼击
吐血，以为必需。
桃仁，主瘀血血闭，血结血燥，通润大便。行月水止痛及 瘕邪气，杀虫辟邪，苦
以破滞血，甘以主新血，花味苦，三月三日采阴干，杀鬼疰，美颜色，除水肿石淋，利
二便，下三虫，酒渍服，除百病。然性走泻下降，利大肠甚快，干粪塞肠，胀痛不通，
用毛桃花者湿者一两，和面三两，作馄饨煮熟，空心食之，午间腹鸣如雷，当下恶物
也。叶味苦辛，出疮中虫并尸虫。并取汁饮，诸虫入耳，女人阴疮，虫咬疼痛，并将
裹塞，枝煎酒饮。治痛心痛，煮汤浴不染时瘟，实恣痰作热。桃凫，辟恶杀邪，吐血用
之，烧灰米汤调服立止。桃胶，乃树中流汁，下淋破血中恶炼服。桃中蠹，亦杀鬼
恶。桃上毛，更破 坚。树白皮，治 生齿间。桃寄生，疗蛊中腹内。
主治（痘疹合参） 桃仁，宜择去双仁者，以汤浸去皮尖研用。此与杏仁润大肠功
同，但杏仁治气秘，桃仁治血秘，虽云苦以去滞，甘以生新，然究竟破血之功多，而益
血之力少，但走血分而性滑润。佐麻仁当归以治燥结如神耳。露桃花味苦辟邪，除百毒
并痘毒瓦斯斑疮，宜清晨带露摘取，饭上蒸熟，焙干用。不宜多用，用多则泻，古方用
治痘，一二日焦紫及丹，盖以其性阴而和阳也。
【香橼】
味苦，性温，无毒。归肺经、脾经。以存放年份久的为佳，使用时需去除白色内瓤。
香橼能理气止呕，健脾开胃增进食欲。其药性虽然平和中正，但若单独使用或用量过大，也会损伤人体正气。对于脾虚患者，必须与人参、白术等药物配合使用，才能发挥相辅相成的益处。
【桃仁】
禀受地之二气，兼得天之五气而生，所以它的味道是苦中带重甘微，气平，无毒。孙思邈说它味辛，孟诜说它性温，这些说法都有一定道理。它入足厥阴肝经和手厥阴心包经。血属于阴，是有形的物质，在全身周流运行，一旦有凝滞不通就会形成瘕积（腹内结块），导致瘀血、经闭，或者是妇女月经不通，或者是跌打损伤导致的积血，以及心下部位宿血坚硬疼痛，这些病症都与足厥阴肝经有关，因为肝是藏血的脏器。苦味能泄降滞气，辛味能消散结聚，甘温之性能通行血脉并舒缓肝急，所以桃仁都能主治这些病症，因此它是治疗蓄血症所必需的药物。而且桃子被认为是五行中木的精气，能够镇压辟除不祥之气，所以能主治邪气；味道苦而辛，所以能杀灭小虫。虽然常说“苦能去滞，甘能生新”，但桃仁苦味重而甘味轻，气薄，味道浓烈且沉降下行，所以泻实的作用多于补益，散瘀而不收敛。如果使用不当，或者过量、长期使用，会导致血液下行不止，损伤真阴，这一点不可不谨慎对待。桃奴是桃仁的别名，指挂在树上经过冬天不脱落的桃子果实，它得气更为完整，通常在正月采集。大概因为桃树被称为仙木、五行之木的精气，最能辟邪，所以用来杀灭各种精怪鬼魅，治疗中恶腹痛、五毒及不祥之气。桃仁的苦温性质，又能通利滞气、消散邪气，所以在治疗血证方面的功效与桃仁相同，对于鬼击吐血等症状，被视为必需药物。
桃仁，主治瘀血、经闭、血结、血燥，能通润大便。能行经止痛，治疗瘕积邪气，杀虫辟邪。苦味能破除滞血，甘味能滋养新血。桃花味苦，在三月三日采集后阴干，能杀鬼疰（一种传染病），美容颜，消除水肿和石淋，通利大小便，驱除三种寄生虫。用酒浸泡服用，能除百病。然而桃仁药性走窜泻下，下降迅速，对大肠的通利作用非常快。如果是干粪堵塞肠道，导致胀痛不通，可以用一两湿的毛桃花，配和三两面粉，做成馄饨煮熟，空腹食用，中午时分腹部会雷鸣般作响，排出恶物即可。桃叶味苦辛，能取出疮疡中的虫子和尸虫。取汁饮用，对于诸虫入耳、女人阴疮、虫咬疼痛等症状，可以将桃叶包裹塞入患处。桃枝煎酒服用，能治疗心痛。煮汤洗澡可以预防不染时行瘟疫。桃实如果恣意食用会助痰生热。桃凫（可能指某种桃树寄生或特定部位），能辟恶杀邪，吐血时使用，烧成灰后用米汤调服可立即止血。桃胶，是树中流出的汁液，能治淋证、破血中恶气，炼服有效。桃核中的蛀虫，也能杀鬼恶。桃树上的毛，更能破除坚积。桃树的白色树皮，能治疗齿间生的息肉。桃寄生，能治疗蛊毒引起的腹内疾病。
主治（痘疹合参）：桃仁，宜选择去掉双仁的，用热水浸泡后去皮尖研碎使用。这与杏仁润肠通便的功效相同，但杏仁治疗气秘（因气滞导致的大便秘结），桃仁治疗血秘（因血瘀导致的大便秘结）。虽然常说苦能去滞，甘能生新，但归根结底桃仁破血的功效多，而益血的力量少，它主要作用于血分，性质滑润。配合火麻仁、当归来治疗燥结，效果神奇。露桃花味苦，能辟邪，除百毒及痘毒瓦斯斑疮。宜在清晨带露水时采摘，放在饭上蒸熟，焙干后使用。不宜多用，用多了会导致腹泻。古方用它治疗痘疹，在一二日出现焦紫及丹痧时，大概是因为它的性质属阴而能和阳。
[Chenyuan / Citri Fructus]
Bitter in taste, warm in nature, non-toxic. Enters the Lung and Spleen meridians. The older it is stored, the better; use after removing the white pith.
Citri Fructus regulates Qi and stops vomiting, strengthens the Spleen and promotes appetite. Although its nature is neutral and balanced, using it alone or in large doses can damage healthy Qi. For patients with Spleen deficiency, it must be used concurrently with Ginseng Radix (Renshen) and Atractylodis Macrocephalae Rhizoma (Baizhu) to achieve synergistic benefits.
[Tao Ren / Persicae Semen]
Endowed with the Earth's second Qi and generated by combining Heaven's fifth Qi, its taste is bitter with a heavy, slightly sweet quality, its nature is neutral, and it is non-toxic. Sun Simiao stated it is pungent, and Meng Shen stated it is warm; both views have merit. It enters the Foot Jueyin Liver meridian and Hand Jueyin Pericardium meridian. Blood belongs to Yin and is substantial. It circulates throughout the body; if stagnation occurs, it forms masses (Jia), leading to blood stasis and amenorrhea, or women's menstrual obstruction, or accumulated blood from blows and falls, as well as hard and painful retained blood under the heart. These conditions all originate from the Foot Jueyin meridian because the Liver stores blood. Bitterness can drain stagnation, pungency can dissipate knots, and sweet-warmness can promote circulation and soothe the Liver. Therefore, it treats all these conditions and is an essential herb for treating blood accumulation syndromes. Moreover, the peach is considered the essence of Wood among the Five Elements, capable of suppressing and warding off inauspiciousness, thus treating pathogenic factors. Its bitter and pungent taste allows it to kill small insects. Although it is said that "bitterness removes stagnation and sweetness generates new tissue," Tao Ren has a heavy bitter and light sweet taste, thin Qi, strong flavor, and sinking/descending action. Thus, its purgative effect outweighs its tonifying effect; it scatters but does not retain. Improper use, or excessive/long-term use, may cause continuous downward bleeding and damage True Yin; this must be handled with caution. Taonao is another name for Tao Ren, referring to peach fruits that remain on the tree through winter. They possess complete Qi and are harvested in the first lunar month. Since the peach tree is regarded as an immortal wood and the essence of Wood among the Five Elements, it is best at warding off evil, thus used to kill various spirits and ghosts, treat sudden severe abdominal pain due to evil invasion, five poisons, and inauspicious signs. Due to its bitter-warm nature, it also promotes stagnation resolution and evil dispersion, so its efficacy in treating blood disorders is similar to that of Persicae Semen. It is considered essential for treating hematemesis caused by ghost strikes.
Persicae Semen primarily treats blood stasis, amenorrhea, blood clots, and dryness of blood, promoting bowel lubrication. It promotes menstruation, relieves pain, treats masses and pathogenic factors, kills parasites, and wards off evil. Bitterness breaks stagnant blood, while sweetness nourishes new blood. Peach blossoms are bitter in taste; collected and shade-dried on the third day of the third lunar month, they kill infectious diseases (Zhuzhong), beautify complexion, eliminate edema and stone strangury, benefit urination and defecation, and expel three types of intestinal worms. Taken after soaking in wine, they eliminate hundred diseases. However, the nature of Persicae Semen is moving, purgative, and descending, acting very quickly on the Large Intestine. In cases of dry fecal impaction causing bloating, pain, and obstruction, use one tael of moist peach hairs (Mao Taohua) mixed with three taels of flour, formed into wontons, boiled until cooked, and eaten on an empty stomach. By noon, the abdomen will rumble like thunder, and foul matter will be discharged. Peach leaves are bitter and pungent; they extract worms from sores and corpse worms. Drinking their juice helps when worms enter the ears, treats female yin sores, and pain from insect bites; the leaves can be wrapped and inserted into the affected area. Decocted peach branches taken with wine treat heart pain. Bathing in decoction prevents contracting epidemic fevers. Consuming peach fruits excessively generates phlegm and heat. Taofu (likely a specific part or parasite of the peach tree) wards off evil and kills pathogens; used for hematemesis, burned to ash and taken with rice water stops bleeding immediately. Taojiao (peach gum), the sap flowing from the tree, treats strangury, breaks blood stasis and evil qi, and is effective when refined and taken. Worms inside peach pits also kill evil spirits. Peach hair further breaks down hard accumulations. White bark of the peach tree treats polyps growing between teeth. Taojiseng (parasite on peach tree) treats internal abdominal diseases caused by gu poison.
Main Indications (Integration with Smallpox): Persicae Semen should be selected to remove those with double kernels, soaked in hot water, skin and tips removed, then ground. Its function in moistening the Large Intestine is similar to Apricot Seed (Xingren). However, Xingren treats constipation due to Qi stagnation, whereas Persicae Semen treats constipation due to Blood stasis. Although it is said that bitterness removes stagnation and sweetness generates new tissue, ultimately Persicae Semen has more blood-breaking power and less blood-nourishing strength. It moves within the Blood level and has a slippery, moist nature. When combined with Hemp Seed (Hemamu) and Angelica Sinensis Radix (Danggui) to treat dryness and obstruction, the effect is miraculous. Dew-covered peach blossoms are bitter and ward off evil, eliminating hundred toxins and smallpox toxin vapors/rashes. They should be picked early in the morning with dew, steamed over rice, dried by baking, and used. Do not use in large amounts, as excess causes diarrhea. Ancient formulas used it for smallpox on the first or second day when lesions became dark purple or appeared as red rashes, likely because its nature is Yin and harmonizes Yang.