（本经中品）
两手相摩，中有暖出，淫为因火为果，理固然矣。
【气味】苦寒，无毒。
【主治】主疥瘙痂痒恶疮，杀虱，治留热在骨节间，明目。
【核】曰∶生华阴川泽，所在有之。得春最早，望春便发。茎如指肥，叶极纤细，色并
青翠，似茵陈蒿而背不白。至夏渐高五、六尺许，秋深开细淡黄花，花下结子如粟米，茎柔
韧，根白硬，苗叶花实，并芬芳特胜，功力亦相若也。笔谈云∶青蒿一类，自有二种∶一黄
色，一青色。青者入药，即本经所指青蒿，亦有所别。陕西银绥间，见青蒿丛中，时有一两
窠，迥然特青如松桧，翠碧可观。至秋余蒿转黄，此蒿翠碧更倍，古人取深青者为胜，恐即
此蒿，独得蒿力之专精者也。不然，诸蒿何尝不青，但青而色淡。雷公云∶凡使，惟中为妙，
到膝即仰，到腰即俯。使子勿使叶，使根勿使茎，四件若同使，翻然成痼疾。修事，其叶，
或茎实，用七岁儿七个溺，浸七日七夜，取出，晒干用。
【 】曰∶蒿青而高，纤柔整密，望春便发，少阳胆药，发陈致新之宣剂也。其味苦，
巳出乎阳，其气寒，未离乎阴，阴中之阳，阳中之枢象也。盖少阳胆主骨，故对待骨节间留
热，若皮肤分理间，疥瘙痂痒恶疮，亦属留热所致，皆陈也。宣发发陈，陈发则新至矣。主
明目者，以肝胆开窍于目，不唯发陈，且拂尘矣。君子蒿目，其斯之谓欤。
【本经中品】
双手相互摩擦，中间会产生暖意，这是以淫邪为因、以火热为果的道理，本是如此。
【气味】味苦，性寒，无毒。
【主治】主要治疗疥疮、瘙痒、结痂及恶疮，杀灭虱子，清除骨节间滞留的热邪，使眼睛明亮。
【核】曰：青蒿生长在华山地区的河川沼泽地带，各地都有出产。它发芽极早，刚望见春天就生长出来。茎干像手指一样肥壮，叶片极其纤细，颜色都是青翠的，看起来像茵陈蒿但叶背不白。到了夏天逐渐长高到五六尺左右，深秋时开出细小的淡黄色花朵，花下结出的种子像粟米一样。茎柔韧，根部白色且坚硬，苗、叶、花、实都特别芬芳，功效也大致相同。《笔谈》中说：青蒿这一类，自然有两种：一种是黄色的，一种是青色的。青色入药，就是《本经》所指的青蒿，其中也有区别。在陕西银州、绥州之间，看到青蒿丛中，时常有一两丛，迥然不同，特别青翠如同松桧，翠绿碧蓝十分可观。到了秋天其余的蒿转黄，这种蒿却更加翠绿碧蓝。古人认为取深青色者为上品，恐怕就是这种蒿，它是独得蒿类精专之力的。不然的话，各种蒿何尝不青，只是青色较淡。雷公说：凡使用青蒿，只有中段最好，到膝盖处就要向上（指不用下部），到腰部就要向下（指不用上部）。只用种子不用叶子，只用根部不用茎，如果四件一起使用，反而会变成顽固疾病。炮制方法：对于其叶、或茎和实，用七个七岁男童的小便浸泡七天七夜，取出晒干后使用。
【 】曰：青蒿青翠而高大，纤细柔弱整齐茂密，望春便发，是少阳胆经的药物，属于宣发陈腐、致生新气的宣剂。它的味道苦，已经出于阳分；它的气寒，尚未离开阴分，这是阴中之阳，也是阳中的枢纽之象。大概少阳胆主司骨骼，所以针对骨节间滞留的热邪，以及皮肤腠理间的疥疮、瘙痒、结痂、恶疮，也都属于滞留热邪所致，这些都是“陈”旧之物。宣发以去陈，陈去则新气至矣。主治明目，是因为肝胆开窍于目，不仅在于发陈，还在于拂去尘埃。君子目光所及，说的就是这个道理吧。
[Shennong Bencao Jing, Middle Grade]
When two hands are rubbed together, warmth emerges from within. This is a case where lasciviousness (Yin) serves as the cause and fire as the effect; such reasoning is indeed correct.
[Flavor and Property] Bitter, cold, non-toxic.
[Indications] Primarily treats scabies, itching, crusting, and malignant sores; kills lice; clears lingering heat in the interstices of bones and joints; brightens the eyes.
[Analysis] It states: Qinghao grows in the rivers and marshes of Mount Hua and is found everywhere. It sprouts earliest among plants, emerging as soon as spring is anticipated. The stem is plump like a finger, the leaves are extremely slender, and the color is uniformly verdant, resembling Yinchen Hao (Artemisia capillaris) but with a non-white underside. By summer, it gradually grows to about five or six chi tall. In late autumn, it blooms with small, pale yellow flowers, producing seeds like millet beneath the flowers. The stem is flexible and tough, while the root is white and hard. The seedling, leaf, flower, and fruit are all exceptionally fragrant, and their medicinal powers are similar. *Bitan* records: Among the genus Artemisia, there are naturally two types: one yellow and one green. The green variety enters medicine, referring to the Qinghao mentioned in the *Bencao Jing*, yet distinctions exist. Between Yinzhou and Suizhou in Shaanxi, amidst patches of Qinghao, one or two clumps are often seen that are distinctly greener than the rest, resembling pine or cypress, with an emerald-green beauty. When other artemisias turn yellow in autumn, this variety becomes even more emerald-green. The ancients considered the deep green variety superior, suspecting this to be the specific type that possesses the concentrated essence of the herb. Otherwise, why would not all artemisias be green, albeit with a paler hue? Lei Gong stated: When using Qinghao, only the middle section is ideal; parts reaching the knee should be discarded upwards, and parts reaching the waist downwards. Use the seed but not the leaf; use the root but not the stem. If all four parts are used together, it may instead induce chronic disease. For processing: for its leaves, or stems and fruits, soak them in the urine of seven seven-year-old boys for seven days and nights, then take out and dry for use.
[Commentary] It states: Qinghao is green and tall, slender, soft, neat, and dense, emerging as soon as spring is anticipated. It is a herb of the Shaoyang Gallbladder channel, serving as a dispersing agent that promotes the emergence of the new by clearing away the old. Its bitter flavor indicates it has emerged into Yang; its cold nature indicates it has not departed from Yin. Thus, it represents Yang within Yin and acts as the pivot of Yang. Generally, the Shaoyang Gallbladder governs the bones; therefore, it addresses lingering heat in the interstices of bones and joints. Similarly, scabies, itching, crusting, and malignant sores in the skin and interstices are also caused by lingering heat, which constitutes "old" pathogenic factors. Dispersing to remove the old allows the new to arrive. Regarding its ability to brighten the eyes: since the Liver and Gallbladder open into the eyes, this action not only clears away the old but also wipes away dust. When a gentleman looks upon the world, this is precisely what is meant.