（《唐本草》）
【释名】片脑（《纲目》）、羯婆罗香（《衍义》），膏名婆律香。
时珍曰∶龙脑者，因其状加贵重之称也。
以白莹如冰，及作梅花片者为良，故俗呼为冰片脑，或云梅花脑。番中又有米脑、速脑、
金脚脑、苍龙脑等称，皆因形色命名，不及冰片、梅花者也。清者名脑油，《金光明经》谓
之羯
恭曰∶龙脑是树根中干脂。婆律香是根下清脂。旧出婆律国，因以为名也。
【集解】恭曰∶龙脑香及膏香出婆律国。树形似杉木。脑形似白松脂，作杉木气，明净
者善。久经风日或如雀屎者不佳。或云∶子似豆蔻，皮有错甲，即杉脂也。今江南有杉木，
未经试。或方土无脂，犹甘蕉之无实也。
颂曰∶今惟南海番舶贾客货之。南海山中亦有之。相传云∶其木高七、八丈，大可六、
七围，如积年杉木状，旁生枝，其叶正圆而背白，结实如豆蔻，皮有甲错，香即木中脂也。
膏即根下清液，谓之婆律膏。按∶段成式《酉阳杂俎》云∶龙脑香树名固不婆律，无花实。
其树有
其膏于树端流出，斫树作坎而承之。两说大同小异。唐天宝中交趾贡龙脑，皆如蝉、蚕之形。
彼人云∶老树根节方有之，然极难得。禁中呼为瑞龙脑，带之衣衿，香闻十余步外，后不复
有此。今海南龙脑，多用火 成片，其中亦容杂伪。入药惟贵生者，状若梅花片，
曰∶是西海波律国波律树中脂也，状如白胶香。其龙脑油本出佛誓国，从树取之。
曰∶《西域记》云∶西方秣罗矩吒国，在南印度境。有羯布罗香树，干如松株而叶异
亦异。湿时无香，木干之后，循理析之，中有香，状类云母，色如冰雪，即龙脑香也。
曰∶龙脑香，南番诸国皆有之。叶廷
损动者，则有香。若损动，则气泄无脑矣。土人解作板，板缝有脑出，乃劈取之。大者成片
如花瓣，清者名脑油。《江南异闻录》云∶南唐保大中
璃瓶中，少顷滴沥成水，香气馥烈，大补益元气。按∶此浆与脑油稍异，盖亦其类尔。《宋
史》熙宁九年，英州雷震，一山梓树尽枯，中皆化为龙脑。此
也。
【修治】恭曰∶龙脑香合糯米炭、相思子贮之，则不耗。
时珍曰∶或言以鸡毛、相思子，同入小瓷罐密收之佳。《相感志》言以杉木炭养之更
良，不耗。今人多以樟脑升打乱之，不可不辨也。相思子见本条。
【气味】辛、苦，微寒，无毒。 曰∶苦、辛，温，无毒。
元素曰∶热。阳中之阳。
【主治】妇人难产，研末少许，新汲水服，立下（《别录》）。
心腹邪气，风湿积聚，耳聋，明目，去目赤肤翳（《唐本》）。内外障眼，镇心秘精，治
三虫五痔（李 ）。散心盛有热（好古）。入骨，治骨痛（李杲）。治大肠脱（元素）。疗喉痹
脑痛，鼻息
苍龙脑
【主治】风疮 ，入膏煎良。不可点眼，伤人（李 ）。
婆律香膏
【主治】耳聋，摩一切风（苏恭）。
【发明】宗 曰∶此物大通利关隔热塞，大人、小儿风涎闭塞，及暴得惊热，甚为济用。
然非常服之药，独行则势弱，佐使则有功。于茶亦相宜，多则掩茶气。味甚清香，为百药之
先，万物中香无出其右者。
震亨曰∶龙脑属火。世知其寒而通利，然未达其热而轻浮飞越，喜其香而贵细，动辄与
麝同用为桂附之助。然人之阳易动，阴易亏，不可不思。
杲曰∶龙脑入骨，风病在骨髓者宜用之。若风在血脉肌肉，辄用脑、麝，反引风入骨髓
，如油入面，莫之能出也。
王纶曰∶龙脑大辛善走，故能散热，通利结气。目痛、喉痹、下疳诸方多用之者，取其
辛散也。人欲死者吞之，为气散尽也。世人误以为寒，不知其辛散之性似乎凉尔。诸香皆属
阳，岂有香之至者而性反寒乎？
时珍曰∶古方眼科、小儿科皆言龙脑辛凉，能入心经，故治目病、惊风方多用之。痘疮
心热血瘀倒 者，用引猪血直入心窍，使毒瓦斯宣散于外，则血活痘发。其说皆似是而实未当
也。
目病、惊病、痘病，皆火病也。火郁则发之，从治之法，辛主发散故尔。其气先入肺，
传于心脾，能走能散，使壅塞通利，则经络条达，而惊热自平，疮毒能出。用猪心血能引龙
脑入心经，非龙脑能入心也。沈存中《良方》云∶痘疮稠密，盛则变黑者。用生 猪血一橡
斗，龙脑半分，温酒和服。潘氏云∶一女病发热，腹痛，手足厥逆，渐加昏闷，形症极恶，
疑是痘候。时
则横夭矣。又宋。文天祥、贾似道皆服脑子求死不得，惟廖莹中以热酒服数握，九窍流血而
死。此非脑子有毒，乃热酒引其辛香，散溢经络，气血沸乱而然尔。
【附方】旧二，新十二。
目生肤翳∶龙脑末一两，日点三、五度。（《圣济总录》）
目赤目膜∶龙脑、雄雀屎各八分。为末，以人乳汁一合调成膏。日日点之，无有不验。
（《圣惠方》）
头目风热上攻∶用龙脑末半两，南硼砂末一两，频
头脑疼痛∶片脑一钱，纸卷作捻，
风热喉痹∶灯心一钱，黄柏五分（并烧存性），白矾七分（ 过），冰片脑三分，为末。
每以一、二分吹患处。此陆一峰家传绝妙方也。（《濒湖集简方》）
鼻中息肉垂下者∶用片脑点之，自入。（《集简方》）
伤寒舌出过寸者∶梅花片脑半分。为末。掺之，随手即愈。（洪迈《夷坚志》）
中风牙噤∶无门下药者，开关散揩之。五月五日午时，用龙脑、天南星等分，为末。每
以一字揩齿二、三十遍，其
牙齿疼痛∶梅花脑、朱砂末各少许。揩之立止。（《集简方》）
痘疮狂躁，心烦气喘，妄语或见鬼神，疮色赤未透者∶《经验后方》∶用龙脑一钱细研，
旋以猪心血丸芡子大。每服
第二番血清半杯，酒半杯，和匀，入龙脑一分，温服。良久利下瘀血一、二行，疮即红活。
此治痘疮黑 候恶，医所不治者，百发百中。
内外痔疮∶片脑一、二分，葱汁化，搽之。（《简便方》）
酒 鼻赤∶脑子、真酥，频搽。（《普济方》）
梦漏口疮∶经络中火邪，梦漏恍惚，口疮咽燥。龙脑三钱，黄柏三两，为末，蜜丸梧桐
子大
子
【气味】辛，温。气似龙脑。
【主治】下恶气，消食，散胀满，香人口（苏恭）。
【附录】元慈勒 藏器曰∶出波斯国。状似龙脑香，乃树中脂也。味甘，平，无毒。主
心病流血，合金疮，去腹内恶血，血痢下血，妇人带下，明目，去翳障、风泪、弩肉。
（出自《唐本草》）
【释名】片脑（出自《纲目》）、羯婆罗香（出自《衍义》），其膏状物称为婆律香。
李时珍说：龙脑，是因为它的形态而加上贵重称呼的。
以洁白晶莹如冰，以及呈梅花片状的为优良，所以俗称冰片脑，或者叫梅花脑。番邦中又有米脑、速脑、金脚脑、苍龙脑等名称，都是根据颜色和形状命名的，都不如冰片、梅花脑好。清澈的称为脑油，《金光明经》称它为羯恭。
苏恭说：龙脑是树根中的干脂。婆律香是根下的清脂。旧时出产于婆律国，因此得名。
【集解】苏恭说：龙脑香及膏香出产于婆律国。树的形状像杉木。脑的形状像白松脂，有杉木的气味，明净的为善品。久经风吹日晒或像雀屎一样的就不好。有人说：种子像豆蔻，树皮有裂纹，就是杉脂。现在江南有杉木，未曾试验过。或者说地方上没有这种脂，就像甘蕉没有果实一样。
苏颂说：现在只有南海来的外国商船贩卖它。南海山中也有。相传说：那棵树高七八丈，粗六七围，像多年的杉木样子，旁边生出枝条，叶子正圆而背面白色，结的果实像豆蔻，皮有甲错般的纹理，香气就是木头中的脂。膏就是根下的清液，称为婆律膏。按：段成式在《酉阳杂俎》中说：龙脑香的树名叫固不婆律，没有花和果实。那棵树有膏从树端流出，砍树挖坑来接取。两种说法大同小异。唐天宝年间交趾进贡龙脑，都像蝉、蚕的形状。那里的人说：老树的根节才有，然而极难得到。宫中称为瑞龙脑，带在身上衣襟间，香气能闻到十几步外，后来就没有了。现在的海南龙脑，多用火烤成片，其中也容许掺杂伪劣。入药只贵在生的，形状像梅花片的。
寇宗奭说：这是西海波律国波律树中的脂，形状像白胶香。那个龙脑油本来出产于佛誓国，从树上采取。
玄奘说：《西域记》说：西方秣罗矩吒国，在南印度境内。有羯布罗香树，树干像松树株但叶子不同，果实也不同。湿润时没有香味，木头干燥后，顺着纹理劈开，里面有香，形状像云母，颜色像冰雪，就是龙脑香。
陆佃说：龙脑香，南番各国都有。如果树木受到损伤震动，就有香。如果受损震动过度，那么气泄就没有脑了。当地人把它剖成板，板缝中有脑流出，就劈取下来。大的成片像花瓣，清的称为脑油。《江南异闻录》说：南唐保大年间，琉璃瓶中，一会儿滴沥成水，香气浓郁强烈，大补元气。按：这个浆与脑油稍有不同，大概也是同类罢了。《宋史》记载熙宁九年，英州雷击，一座山的梓树全部枯死，中间都化为龙脑。这也是自然现象。
【修治】苏恭说：龙脑香要和糯米炭、相思子一起贮存，就不会消耗。
李时珍说：有人说用鸡毛、相思子，同放入小瓷罐中密封收藏较好。《相感志》说用杉木炭养护更好，不消耗。现在人多用樟脑升华打乱冒充，不可不辨别。相思子见本条。
【气味】辛、苦，微寒，无毒。
苏恭说：苦、辛，温，无毒。
张元素说：热。阳中之阳。
【主治】妇人难产，研成末少许，用新汲的水服用，胎儿立刻生下（《别录》）。
心腹邪气，风湿积聚，耳聋，明目，去目赤肤翳（《唐本草》）。内外障眼，镇心安神秘精，治三虫五痔（李当之）。散心盛有热（寇宗奭）。入骨，治骨痛（李杲）。治大肠脱肛（张元素）。疗喉痹、脑痛、鼻息……苍龙脑……
【主治】风疮……入膏煎煮良好。不可点眼，伤人（李当之）。
婆律香膏
【主治】耳聋，摩一切风（苏恭）。
【发明】寇宗奭说：此物大通利关隔热塞，大人、小儿风涎闭塞，以及突然得的惊热，非常有用。但不是常服之药，单用则势力弱，作为佐使药则有功效。与茶也相宜，多了会掩盖茶气。味道很清香，为百药之首，万物中香没有超过它的。
朱震亨说：龙脑属火。世人知道它寒而通利，然而不明白它热而轻浮飞越，喜欢它的香而珍贵细微，动辄与麝香同用作为桂枝、附子的辅助。然而人的阳气易动，阴气易亏，不可不思考。
李杲说：龙脑入骨，风病在骨髓者适宜用它。如果风在血脉肌肉，就用脑、麝，反而引风入骨髓，像油入面，不能出来。
王纶说：龙脑大辛善走，所以能散热，通利结气。目痛、喉痹、下疳诸方多用它，取其辛散的性质。人想死的时候吞服它，是因为气散尽了。世人误以为它寒，不知道它辛散的性质似乎凉而已。诸香皆属阳，哪有香至极而性质反寒的呢？
李时珍说：古方眼科、小儿科都说龙脑辛凉，能入心经，所以治目病、惊风方多用它。痘疮心热血瘀倒陷者，用引猪血直入心窍，使毒瓦斯宣散于外，则血活痘发。这些说法看似有理实则不当。
目病、惊病、痘病，都是火病。火郁则发散，是从治之法，辛主发散所以如此。它的气先入肺，传于心脾，能走能散，使壅塞通利，则经络条达，而惊热自平，疮毒能出。用猪心血能引龙脑入心经，不是龙脑能入心。沈括《良方》说：痘疮稠密，盛则变黑的。用生猪血一橡斗，龙脑半分，温酒和服。潘氏说：一女病发热，腹痛，手足厥逆，渐渐昏闷，形症极恶，怀疑是痘候。当时……则横夭了。又宋文天祥、贾似道都服脑子求死不得，只有廖莹中以热酒服数握，九窍流血而死。这不是脑子有毒，而是热酒引其辛香，散溢经络，气血沸乱而这样。
【附方】旧二，新十二。
目生肤翳：龙脑末一两，每日点三、五次。（《圣济总录》）
目赤目膜：龙脑、雄雀屎各八分。研成末，用人乳汁一合调成膏。日日点之，无有不验。（《圣惠方》）
头目风热上攻：用龙脑末半两，南硼砂末一两，频……
头脑疼痛：片脑一钱，纸卷作捻，……
风热喉痹：灯心一钱，黄柏五分（并烧存性），白矾七分（煅过），冰片脑三分，为末。每以一、二分吹患处。这是陆一峰家传绝妙方。（《濒湖集简方》）
鼻中息肉垂下者：用片脑点之，自入。（《集简方》）
伤寒舌出过寸者：梅花片脑半分。为末。掺之，随手即愈。（洪迈《夷坚志》）
中风牙噤：无门下药者，开关散揩之。五月五日午时，用龙脑、天南星等分，为末。每以一字揩齿二、三十遍，其……
牙齿疼痛：梅花脑、朱砂末各少许。揩之立止。（《集简方》）
痘疮狂躁，心烦气喘，妄语或见鬼神，疮色赤未透者：《经验后方》：用龙脑一钱细研，旋以猪心血丸芡子大。每服……
第二番血清半杯，酒半杯，和匀，入龙脑一分，温服。良久利下瘀血一、二行，疮即红活。此治痘疮黑陷候恶，医所不治者，百发百中。
内外痔疮：片脑一、二分，葱汁化，搽之。（《简便方》）
酒齄鼻赤：脑子、真酥，频搽。（《普济方》）
梦漏口疮：经络中火邪，梦漏恍惚，口疮咽燥。龙脑三钱，黄柏三两，为末，蜜丸梧桐子大……
【气味】辛，温。气似龙脑。
【主治】下恶气，消食，散胀满，香人口（苏恭）。
【附录】元慈勒 藏器说：出产于波斯国。形状像龙脑香，是树中的脂。味甘，平，无毒。主心病流血，合金疮，去腹内恶血，血痢下血，妇人带下，明目，去翳障、风泪、弩肉。
(From *Tang Bencao*)
[Names] Pian Nao (from *Bencao Gangmu*), Jialuoxiang (from *Yanyi*), its resinous form is called Polvxiang.
Li Shizhen said: Longnao (Borneol) receives this precious name due to its appearance.
Those that are white, crystal clear like ice, and in the shape of plum blossom flakes are considered superior, hence commonly called Bingpian Nao (Ice Borneol) or Meihua Nao (Plum Blossom Borneol). In foreign lands, there are also names such as Mi Nao, Su Nao, Jinjiao Nao, and Canglong Nao, all named according to color and shape, none surpassing Bingpian and Meihua. The purest form is called Naoyou (Borneol Oil), referred to as Jiegong in the *Jin Guangming Jing*.
Su Gong said: Longnao is the dried resin from the tree roots. Polvxiang is the clear resin from below the roots. It was originally produced in Boluo Country, hence the name.
[Collection and Explanation] Su Gong said: Longnao Xiang (Borneol Fragrance) and its resinous form come from Boluo Country. The tree resembles a fir. The "brain" (resin) resembles white pine resin, has the scent of fir, and the clear and pure ones are good. Those exposed to wind and sun for a long time or resembling bird droppings are inferior. Some say: the seeds resemble cardamom, the bark has cracked scales, which is fir resin. Currently, firs grow in Jiangnan, but this has not been tested. Or perhaps some regions lack this resin, just as bananas lack fruit.
Su Song said: Now it is only traded by foreign merchants arriving by ship in the South Sea. It also grows in the mountains of the South Sea. It is said: the tree is seven or eight zhang high, six or seven wei thick, looking like an aged fir, with branches growing sideways, leaves round and white on the back, fruits like cardamom, bark with scale-like cracks; the fragrance is the resin within the wood. The resinous liquid at the root base is called Polvgao (Polv Resin). According to Duan Chengshi's *Youyang Zazu*: The tree of Longnao Xiang is named Gu Buluo, has no flowers or fruit. Its resin flows from the top of the tree; trees are cut and hollowed out to collect it. The two accounts are largely similar. During the Tianbao era of Tang, Jiaozhi paid tribute in the form of Longnao resembling cicadas or silkworms. Locals said it only appears at the joints of old tree roots, yet is extremely rare. It was called Ruilongnao (Auspicious Dragon Borneol) in the palace; carrying it on one's lapel allowed the scent to be detected ten paces away, but later such specimens ceased to appear. Current Hainan Longnao is often processed into flakes by fire, allowing for adulteration. For medicinal use, the raw form resembling plum blossom flakes is prized.
Kou Zongshi said: This is the resin from the Boluo tree in Boluo Country west of the sea, resembling Baijiaoxiang (White Gum Resin). The Longnao oil originally came from Foshi Country, extracted from trees.
Xuanzang said: According to *Records of the Western Regions*, in Moluojutuo Country in western India (southern India), there is a Jiebuluo Xiang tree. Its trunk resembles a pine but its leaves and fruits differ. When wet, it has no scent; after drying, splitting along the grain reveals the fragrance inside, resembling mica in shape and ice/snow in color; this is Longnao Xiang.
Lu Tan said: Longnao Xiang is found in various southern foreign countries. If the tree is damaged or shaken, fragrance is produced. If damaged excessively, the qi leaks and no "brain" remains. Locals split the wood into boards; resin exudes from the board seams, which is then harvested. Large pieces resemble flower petals; the purest is called Naoyou. *Jiangnan Yiwen Lu* states: During the BaoDa era of Southern Tang, in a glass bottle, it dripped into water shortly, with a strong, rich aroma, greatly tonifying Yuanqi (Primal Qi). Note: This sap differs slightly from Naoyou but is likely of the same category. *Song Shi* records that in the 9th year of Xining, lightning struck Yingzhou, withering all catalpa trees on a mountain, which turned into Longnao internally. This is a natural phenomenon.
[Processing] Su Gong said: Storing Longnao Xiang with glutinous rice charcoal and Abrus precatorius seeds prevents loss.
Li Shizhen said: Some suggest storing it in a small porcelain jar with chicken feathers and Abrus precatorius seeds for best results. *Xianggan Zhi* suggests storing it with fir charcoal is even better, preventing loss. Nowadays, many confuse it with sublimated Camphor (Zhangnao), so distinction is necessary. See Abrus precatorius under its own entry.
[Properties and Flavor] Acrid, bitter, slightly cold, non-toxic.
Su Gong said: Bitter, acrid, warm, non-toxic.
Zhang Yuansu said: Hot. Yang within Yang.
[Indications] For difficult childbirth: grind into powder, take a small amount with fresh well-water; delivery follows immediately (*Bielu*).
For evil qi in the heart and abdomen, rheumatic accumulation, deafness, brightening the eyes, removing redness and corneal opacity (*Tang Bencao*). For internal and external eye obstructions, calming the Heart, securing essence, treating three types of parasites and five types of hemorrhoids (Li Dang). Dispelling excess heat in the Heart (Kou Zongshi). Entering the bones to treat bone pain (Li Gao). Treating rectal prolapse (Zhang Yuansu). Treating throat obstruction, brain pain, nasal discharge... Canglong Nao...
[Indications] For wind sores: excellent when decocted in ointments. Do not apply to eyes, as it harms them (Li Dang).
Polvxiang Resin
[Indications] Deafness, massaging to dispel all wind pathogens (Su Gong).
[Elucidation] Kou Zongshi said: This substance thoroughly unblocks orifices and clears heat/stagnation. It is very useful for adults and children suffering from blockage by wind-phlegm or sudden fright-heat. However, it is not for daily consumption; used alone its effect is weak, but as an assistant herb it is effective. It is compatible with tea, though too much masks the tea's aroma. Its flavor is very clear and fragrant, ranking first among herbs; no other fragrance in nature surpasses it.
Zhu Danxi said: Longnao belongs to Fire. People know it is cold and unblocking, but fail to realize it is hot, light, floating, and soaring. They value its fine fragrance and often use it with Moschus (She Xiang) to assist Cinnamon Twig (Guizhi) and Aconite (Fuzi). However, human Yang Qi moves easily, while Yin Qi is easily depleted; this must be considered.
Li Gao said: Longnao enters the bones; it is suitable for wind diseases located in the marrow. If wind is in the blood vessels and muscles, using Borneol and Musk instead draws the wind deeper into the marrow, like oil entering dough, impossible to remove.
Wang Lun said: Longnao is highly acrid and mobile, thus able to dissipate heat and unblock stagnant Qi. It is widely used in formulas for eye pain, throat obstruction, and chancres because of its acrid dispersing nature. Swallowing it causes death because it scatters all Qi. People mistakenly think it is cold, not realizing its acrid dispersing nature merely seems cool. All fragrances belong to Yang; how can the most fragrant have a cold nature?
Li Shizhen said: Ancient formulas in ophthalmology and pediatrics state Longnao is acrid-cool and enters the Heart Meridian, hence widely used for eye diseases and convulsive disorders. For smallpox where Heart blood is hot and stasis causes collapse, pig's blood is used to guide toxins outward, activating blood and promoting eruption. These theories seem plausible but are actually incorrect.
Eye diseases, convulsions, and smallpox are all Fire diseases. When Fire is constrained, it must be dispersed; using acrid flavors for dispersion is a "following treatment" method. Its Qi first enters the Lung, transmits to the Heart and Spleen, moving and dispersing, unblocking congestion, thereby smoothing meridians, calming fright-heat, and allowing toxin eruption. Pig's blood guides Longnao into the Heart Meridian; it is not that Longnao itself enters the Heart. Shen Kuo's *Liangfang* states: For dense smallpox turning black, mix half a liang of raw pig's blood with half a fen of Longnao, taken with warm wine. Pan's case: A girl suffered fever, abdominal pain, cold limbs, progressing to coma, appearing critical, suspected smallpox. At that time... she died prematurely. Also, Wen Tianxiang and Jia Sidao of Song took Borneol to commit suicide but failed. Only Liao Yingzhong died after taking several handfuls with hot wine, bleeding from nine orifices. This is not because Borneol is toxic, but because hot wine guided its acrid fragrance to scatter through meridians, causing chaotic Qi and Blood.
[Attached Formulas] Two old, twelve new.
Corneal opacity forming film: One qianliang of Longnao powder, instill 3-5 times daily (*Shengji Zonglu*).
Red eyes and membranes: Eight fen of Longnao and male sparrow droppings. Grind to powder, mix with one he of human breast milk to make an ointment. Instill daily without exception (*Shenghui Fang*).
Wind-Heat attacking head and eyes: Half a qianliang of Longnao powder, one qianliang of Borax (Nan Pengsha)...
Headache: One qian of Pian Nao, rolled in paper as a candle wick...
Wind-Heat Throat Obstruction: One qian of Juncus effusus, five fen of Phellodendron (charred), seven fen of Alum (calcined), three fen of Ice Borneol. Grind to powder. Blow one or two fen onto the affected area. This is a superb family recipe of Lu Yifeng (*Binhu Jijian Fang*).
Nasal polyps hanging down: Apply Pian Nao directly; they will retract (*Jijian Fang*).
Typhoid tongue protruding beyond one cun: Half a fen of Plum Blossom Borneol. Grind to powder. Sprinkle; heals immediately (*Yijian Zhi*).
Stroke with locked jaw: If no medicine can be administered, rub with Kaiguan San. On the 5th day of the 5th lunar month at noon, equal parts Longnao and Pinellia ternata. Grind to powder. Rub a "yi zi" amount on teeth 20-30 times...
Toothache: Small amounts of Plum Blossom Borneol and Cinnabar powder. Rub; pain stops immediately (*Jijian Fang*).
Smallpox with mania, restlessness, panting, delirium, seeing ghosts, lesions red but not fully erupted: *Jingyan Houfang*: Grind one qian of Longnao finely. Immediately form pills the size of frog eggs using pig's blood. Take...
Half a cup of serum from the second batch of pig blood, half a cup of wine, mixed evenly with one fen of Longnao, taken warm. After a while, passage of one or two lines of dark blood occurs, and lesions become red and vibrant. This treats severe, untreatable black-pustule smallpox with 100% efficacy.
Internal and external hemorrhoids: One or two fen of Pian Nao, dissolved in green onion juice, applied externally (*Jianbian Fang*).
Rhinophyma (red nose): Borneol and true butter, applied frequently (*Puji Fang*).
Nocturnal emission and mouth ulcers: Fire pathogen in meridians, vague dreams, mouth ulcers, dry throat. Three qian of Longnao, three liang of Phellodendron. Grind to powder, honey-pill size of Sophora japonica seeds...
[Properties and Flavor] Acrid, warm. Aroma resembles Longnao.
[Indications] Descends evil qi, aids digestion, disperses fullness, pleasant to smell (Su Gong).
[Appendix] Chen Cangqi said: Produced in Persia. Resembles Longnao Xiang, being tree resin. Sweet taste, neutral, non-toxic. Treats Heart disease with bleeding, sets fractures, removes evil blood in abdomen, bloody dysentery, leukorrhea, brightens eyes, removes opacity, wind-tearing, and caruncle.