乃心、肺、肝三经药也。而入肝为主。味苦 咸，性寒，无毒。青盲，肝热也；惊
悸，心热也；疥虫，湿热也；风头痛，火热上升也；蛊毒吐血，热毒伤血也。百节中结
气及妇人产后余痛者，血热气壅也。苦寒总除诸热，故能疗以上等症也，取之时勿中湿即有毒也。
羊角，主青盲明目，杀疥虫蛊毒，止寒泄，定惊悸，疗百节中结气，除风头痛。
及吐血，妇人产后余痛。
夫羊，火畜也。羚羊，则属木，味咸，气寒，无毒。入手太阴、少阴，足厥阴经。
性灵能通神灵，故能僻邪气蛊恶，使心气安而无魇寝惊梦也。且厥阴为风木之位，热甚
风生，能入肝，除热散邪，则目为肝窍而自明，肌肤寒热温风，皆自散也，火热太甚则
阴反不起，骨消筋软，咸寒，走下焦而除邪
热，则阴自起，气自益，筋骨强，身自轻也。
羚羊角，清肺肝火，凉营安神，除惊明目，益气起阴，辟邪蛊恶，安心气，使睡卧
安宁，除邪热，筋强骨健，散伤寒，寒热在于肌肤，散温风，注毒伏于骨肉，盖属木而
入厥阴甚捷，咸寒而直入至阴之位，所以善治筋骨受热而软缓，肝营消烁而目昏，肝魂
妄越而靥寐惊狂，犀角镇心，凉心血。羊角镇肝凉肝营。
主治（痘疹合参） 清肺肝，解热毒血热，痘症宜之。较之犀角，凉心镇心者，更
无冰伏痘毒之患，故功力尤稳耳。
按∶羚羊角，外有二十四节挂痕，内有天生木胎，有神力抵千牛，虽能清肺，更切
理肝，故不宜多用久用，以伐厥阴生生之气。
这是心、肺、肝三经的药物，但主要入肝经。味道苦、咸，性质寒，无毒。青盲（视力丧失），是肝热所致；惊悸（心慌、惊恐不安），是心热所致；疥虫（皮肤寄生虫病），是湿热所致；风头痛，是火热之气上升所致；蛊毒吐血，是热毒损伤血络所致。全身关节中的结聚之气以及妇女产后遗留的疼痛，都是血热气滞所致。苦寒之性总可清除各种热邪，所以能治疗上述病症。采集时如果沾上湿气就有毒性。
羊角，主治青盲明目，杀灭疥虫和蛊毒，止住寒性泄泻，安定惊悸，治疗全身关节中的结聚之气，消除风头痛，以及吐血、妇女产后遗留的疼痛。
羊，属于火畜。羚羊则属木，味道咸，气寒，无毒。归入手太阴肺经、手少阴心经、足厥阴肝经。其性灵通神灵，所以能驱避邪气和蛊毒恶气，使心气安宁而没有噩梦惊梦。况且厥阴经是风木之位，热盛则生风，羚羊角能入肝，清除热邪、疏散外邪，那么眼睛作为肝之窍自然明亮，肌肤间的寒热温风之邪自然消散。火热过甚则阴液反而不能恢复，导致骨骼消减、筋脉软弱，羚羊角味咸性寒，下行至下焦而清除邪热，那么阴液自然恢复，元气自然增益，筋骨强健，身体自然轻健。
羚羊角，清泻肺肝之火，凉营安神，消除惊悸、明亮双目，益气起阴，辟除邪气蛊毒，安心气，使睡眠安宁，清除邪热，使筋骨强健，疏散伤寒，解除在于肌肤的寒热，疏散温风，注毒潜伏于骨肉之间。它属木而入厥阴肝经非常迅速，味咸性寒而直入至阴之位，所以善于治疗筋骨受热而软缓无力，肝营消耗枯竭而目昏花，肝魂妄动越出而导致夜间惊狂。犀角镇心安神，凉心血。羊角则是镇肝、凉肝营。
主治（结合痘疹分析）：清肺肝，解热毒和血热，痘症适宜使用。与犀角相比，犀角凉心镇心，更有冰伏痘毒的隐患，所以羚羊角的功力尤为稳妥。
按语：羚羊角，外部有二十四节挂痕，内部有天生木质胎核，有神力可抵千牛之力。虽然能清肺，但更切合调理肝脏，所以不宜多用久用，以免损伤厥阴肝经生生不息之气。
This is a herb for the Heart, Lung, and Liver meridians, but it primarily enters the Liver meridian. Its taste is bitter and salty, its nature is cold, and it is non-toxic. Qingmang (blindness) is caused by Liver heat; Jingji (palpitations and fright) is caused by Heart heat; Jiechong (scabies/parasitic skin disease) is caused by damp-heat; Feng tou tong (wind-induced headache) is caused by the rising of fire-heat; Gu du tu xue (hematemesis due to gu poison) is caused by heat-toxin damaging the blood vessels. The accumulation of qi in all joints and the lingering pain after childbirth in women are caused by blood heat and qi stagnation. The bitter-cold property generally eliminates various heat pathogens, thus it can treat the aforementioned conditions. It must not be collected when wet, as it becomes toxic under such conditions.
Yangjiao (Sheep Horn) treats Qingmang and improves vision, kills scabies parasites and gu poison, stops cold-type diarrhea, stabilizes palpitations and fright, treats qi accumulation in all joints, dispels wind-induced headaches, hematemesis, and lingering postpartum pain.
Sheep belongs to Fire animals. Antelope, however, belongs to Wood. Its taste is salty, its qi is cold, and it is non-toxic. It enters the Hand Taiyin Lung Meridian, Hand Shaoyin Heart Meridian, and Foot Jueyin Liver Meridian. Its spiritual nature can communicate with deities, so it can ward off evil qi and gu malice, calming the Heart qi and preventing nightmares and sleep disturbances. Moreover, the Jueyin position is that of Wind-Wood. When heat is excessive, wind is generated. Since it can enter the Liver, clear heat, and disperse evil, the eyes, being the orifice of the Liver, will naturally become clear, and the cold-heat and warm winds affecting the skin and muscles will naturally dissipate. If fire-heat is too severe, Yin fluids fail to recover, leading to bone wasting and sinew softening. Being salty and cold, it descends to the Lower Jiao to eliminate pathogenic heat, thereby restoring Yin, benefiting Qi, strengthening bones and sinews, and lightening the body.
Lingyangjiao (Antelope Horn) clears Lung and Liver fire, cools the Ying level and calms the spirit, eliminates fright and brightens the eyes, benefits Qi and restores Yin, wards off evil and gu malice, calms the Heart qi, ensures peaceful sleep, eliminates pathogenic heat, strengthens sinews and bones, disperses Shanghan (cold damage), resolves cold-heat in the skin and muscles, disperses Wenfeng (warm wind), and addresses toxins lodged in bones and flesh. As it belongs to Wood and enters the Jueyin quickly, and being salty and cold, it directly reaches the position of Extreme Yin, it is particularly effective in treating weakness and flaccidity of sinews and bones due to heat, dimness of vision due to consumption of Liver Ying, and night terrors and mania due to the reckless wandering of the Liver Hun. Xijiao (Rhinoceros Horn) settles the Heart and cools Heart blood. Yangjiao settles the Liver and cools Liver Ying.
Main indications (integrated with variola analysis): Clears the Lung and Liver, resolves heat-toxin and blood-heat; suitable for variola. Compared to Xijiao, which cools and settles the Heart, Lingyangjiao avoids the risk of freezing the variola toxin with ice-like coldness, making its efficacy more stable.
Note: Lingyangjiao has twenty-four nodal scars externally and a natural wooden core internally. It possesses divine strength equivalent to a thousand oxen. Although it can clear the Lung, it is more pertinent to regulating the Liver. Therefore, it should not be used excessively or for prolonged periods, to avoid impairing the generative Qi of the Jueyin Liver.