即地龙
咸寒小毒。白颈者良。解热毒，入盐化水用。通经络，炙干用。
《本经》主蛇瘕，去三虫，伏尸鬼疰蛊毒，杀长虫。
发明 蚯蚓在物应土德，在星为轸水，体虽卑伏而性善穴窜。专杀蛇虫、三虫伏尸诸毒
，解湿热，疗黄胆，利小便，通经络，故活络丸以之为君。地龙汤治痘疮，脾肾虚热娇红，
五六日渐变干紫伏陷者，同荸荠捣，和酒酿，服之即起。若干紫色黯皮坚，为肝脾血热，即
宜犀角、紫草、黄连清解，非地龙所宜。温病大热，狂妄，天行大热，和人尿捣绞服之，热
毒从小便而去也。小便暴秘不通，亦宜用之。入葱化为水，疗暴聋。
咸寒小毒。
发明 蛞蝓蜗牛生下湿地，阴雨即出，至阴类也。治诸肿毒痔漏，制蜈蚣、蝎虿诸毒，
研烂涂之，取其解热消毒之功耳，其形尖小而缘桑上者谓之缘桑蠃。治大肠脱肛，和猪脂涂
之立缩。此蠃诸木上皆有，独取桑上者，正如桑螵蛸之义。
甘平无毒。粘舌色白者良。 赤，水飞用。飞之不细，粘着肠胃，令人寒热。
《本经》主心腹鬼疰，精物老魅，咳逆泄痢脓血，女子漏下，症瘕坚结，小儿热气
惊痫。
发明 涩可以去脱，龙骨入肝敛魂，收敛浮越之气。《本经》主心腹鬼疰，精魅诸疾，
以其神灵能辟恶气也。其治咳逆泄痢脓血，女子漏下，取涩以固上下气血也。其性虽涩而能
入肝破结，症瘕坚结皆肝经之血积也。小儿热气惊痫亦肝经之病，得牛黄以协济之，其祛邪
伐肝之力尤捷。许洪云∶牛黄恶龙骨，而龙骨得牛黄更良，有以制伏之也。其性收阳中之阴
，专走足厥阴经，兼入手足少阴。治夜梦鬼交，多梦纷纭，多寐泄精，衄血吐血，胎漏肠风
，益肾镇心，为收敛精气要药。有客邪则兼表药用之。故仲景治太阳证，火劫亡阳惊狂，有
救逆汤火逆下之。因烧针烦躁，有桂枝甘草龙骨牡蛎汤。少阳病误下惊烦，有柴胡龙骨牡蛎
汤。《金匮》治虚劳失精，有桂枝加龙骨牡蛎汤。《千金方》同远志酒服，治健忘心忡。以
二味蜜丸朱砂为衣，治劳心梦泄。《梅师》用桑螵蛸为末，盐汤服二钱治遗尿淋沥。又主带
脉为病，故崩带不止，腹满，腰溶溶若坐水中。止涩药中加用之，止阴疟，收湿气，治休息
痢、久痢脱肛，生肌敛疮皆用之。但收涩太过，非久痢虚脱者切勿妄投。火盛失精者误用，
多致溺赤涩痛，精愈不能收摄矣。
It is Dilong (Earthworm).
Salty, cold in nature, with slight toxicity. The white-necked variety is superior.
It resolves heat toxins; for this purpose, it is mixed with salt and liquefied into water.
It unblocks the meridians; for this purpose, it is dried by roasting.
The *Shennong Bencao Jing* states that it treats snake abdominal masses (Shejia), expels the three parasites, Fu Shi (hidden accumulation diseases), Gui Zhu (ghostly infections), Gu poison, and kills long worms (intestinal parasites).
[Invention]
Among creatures, the earthworm corresponds to the virtue of Earth; among stars, it corresponds to Zhen Water. Although its body is lowly and prone to crouching, its nature is good at burrowing and penetrating. It specializes in killing snakes, insects, the three parasites, and various poisons associated with Fu Shi.
It resolves damp-heat, treats jaundice, promotes urination, and unblocks the meridians. Therefore, Huoluo Wan (Meridian-Activating Pill) uses it as the sovereign herb.
Dilong Tang (Earthworm Decoction) is used to treat smallpox. When spleen and kidney deficiency heat causes a delicate red complexion, and after five or six days the lesions become dry, purple, and sink inward, mixing the earthworm with water chestnut (Biqie), pounded together, and taken with fermented rice wine can cause immediate recovery.
If the lesions are dark purple, dull, and have hard skin, this indicates blood heat in the liver and spleen. In such cases, Xijiao (Rhinoceros Horn), Zicao (Arnebia Root), and Huanglian (Coptis Rhizome) should be used immediately for clearing and resolving heat and cooling blood; earthworm is not suitable here.
For warm diseases presenting with high fever and delirium/raving, or epidemic high fever, mixing it with human urine, pounding, and squeezing out the juice for administration allows the heat toxin to exit via urination.
It is also suitable for sudden urinary retention and obstruction.
When placed in green onions until liquefied, it treats sudden deafness.
Salty, cold in nature, with slight toxicity.
[Invention]
Agriolimax (slug) and snails are born in damp places and emerge during rainy weather; they belong to the category of extreme Yin.
They treat various swelling toxins and hemorrhoidal fistulas, and counteract the toxicity of centipedes and scorpions. Pounded into a paste and applied topically, their efficacy lies in resolving heat and detoxifying.
Those that are small, pointed, and climb on mulberry trees are called Yuansang Luo (Mulberry-climbing Snail).
To treat rectal prolapse, applying them mixed with pig fat causes immediate retraction.
These shells are found on all kinds of trees, but only those from mulberry trees are selected, similar to the rationale for using Sangpiaoxiao (Mantis Egg Case).
Sweet, neutral in nature, non-toxic.
The sticky, white ones are superior.
The red ones require water-calcination (Fei). If not calcined finely enough, they will stick to the stomach and intestines, causing alternating chills and fever.
The *Shennong Bencao Jing* states that it treats heart and abdominal ghostly infections, ancient spirits/monsters, cough with reverse flow, dysentery with pus and blood, leukorrhea in women, Zheng Jia (masses) with firm consolidation, and pediatric heat-induced convulsions.
[Invention]
Astringency can prevent collapse. Longgu (Dragon Bone) enters the liver to anchor the soul and astringe floating and hyperactive Qi.
The *Shennong Bencao Jing* states it treats heart and abdominal ghostly infections and spirit-related diseases because its spiritual nature can repel evil qi.
Its treatment of cough with reverse flow, dysentery with pus and blood, and leukorrhea in women utilizes its astringent property to consolidate the upper and lower Qi and Blood.
Although its nature is astringent, it can enter the liver to break up stagnation; Zheng Jia (masses) with firm consolidation are blood accumulations in the liver meridian.
Pediatric heat-induced convulsions are also diseases of the liver meridian. When combined with Niuhuang (Calculus Bovis), the power to dispel pathogens and subdue the liver is particularly swift.
Xu Hong stated: Calculus Bovis dislikes Longgu, but Longgu becomes more effective when combined with Calculus Bovis, due to the mutual restraint.
Its nature collects the Yin within Yang. It specifically travels through the Foot-Jueyin Liver Meridian and additionally enters the Hand-Shaoyin Heart Meridian and Foot-Shaoyin Kidney Meridian.
It treats nocturnal emissions during dreams, excessive dreaming, somnolence with spermatorrhea, epistaxis, hematemesis, fetal bleeding, and intestinal wind. It benefits the kidney and calms the heart, serving as an essential herb for consolidating essence and Qi.
If there are external pathogenic factors, it should be used in combination with exterior-releasing herbs.
Therefore, Zhang Zhongjing treated Taiyang syndrome where fire therapy caused Yang collapse, palpitations, and mania, using Jiuni Tang (Rescue Collapse Decoction); for conditions resulting from improper downward purgation following fire therapy, there are corresponding formulas. For restlessness caused by burning needles, there is Guizhi Gancao Longgu Muli Tang (Cinnamon Twig, Licorice, Dragon Bone, and Oyster Shell Decoction). For Shaoyang syndrome complicated by palpitations and irritability due to improper purgation, there is Chaihu Longgu Muli Tang (Bupleurum, Dragon Bone, and Oyster Shell Decoction).
The *Jingui Yaolue* treats consumptive disease with loss of essence using Guizhi Jia Longgu Muli Tang (Cinnamon Twig Decoction plus Dragon Bone and Oyster Shell).
The *Qianjin Fang* administers it with Yuanzhi (Polygala Root) and wine to treat forgetfulness and palpitations.
Made into honey pills coated with Cinnabar, it treats mental exhaustion leading to nocturnal seminal emission.
The *Meishi Fang* uses Sangpiaoxiao (Mantis Egg Case) powder taken with salt water (2 qian) to treat enuresis and dribbling.
It also treats Dai Mai (Girdle Vessel) diseases, such as uncontrollable metrorrhagia and leukorrhea, abdominal fullness, and a sensation of sitting in water in the waist.
When added to astringent herbs, it stops Yin malaria, absorbs dampness, treats intermittent dysentery, chronic dysentery with rectal prolapse, and promotes tissue regeneration and wound healing.
However, if the astringent effect is too strong, it must not be recklessly administered to patients with chronic dysentery and Qi collapse. Misuse in cases of essence loss due to excess fire often leads to reddish, painful, and difficult urination, causing further inability to retain essence.