轻、发表和里、宣、通阳活血。
辛散而平。（隐居曰∶白冷青热、伤寒方中、不得用青。）发汗解肌。通上下阳气。（仲
景白
通汤、通脉四逆汤、并加之以通脉回阳、若面赤而格阳于上者、尤须用之。）治伤寒头痛。
时疾热狂。阴毒腹痛。（阴证厥逆、安脐上熨之。）香港脚奔豚。益目睛。（白睛属肺。）利耳鸣
。通二便。（时珍曰∶葱白吹盐入玉茎中、治小便不通、及转脬危急者、极效。）气通则血活
。（气为血帅。）故治吐血衄血。便血痢血。折伤出血。（火煨研封、止痛无瘢。）乳痈风痹。
通乳安胎。（合香豉阿胶、治胎动。）通气故能解毒。杀药毒、鱼肉毒、蚯蚓毒。涂 犬伤。
多食令人神昏发落。虚气上冲。取白连须用。同蜜食。杀人。（百一方、患外痔者、先用木
鳖煎汤熏洗、以青葱涎对蜜调敷、其凉如冰。）同枣食。令人病。合犬雉肉食。令人病血。
青叶、治水病足肿。（茎叶煮汤渍之、日三五次、妙。）汁、（金疮出血、取葱炙热、 汁涂
之。）
一名 子。滑、利窍泄滞。
辛苦温滑。下气调中。散血生肌。泄下焦大肠气滞。治泄痢下重。（好古曰∶下重者、
气滞
也、四逆散加此以泄滞、按里急后重、有气虚血虚、火热风燥之不同、宜随证施治、勿专执
一说。）胸痹刺痛。肺气喘急。（取其滑泄。）安胎和产。涂汤火伤。（和蜜捣。）滑利之品。
无滞勿用。补虚之说。切勿信之。叶似韭而中空。（其叶光滑、露亦难伫、故云薤露。）根如
蒜。取白用。
性味轻清，具有发散表邪、调和里气、宣通阳气、活血的功效。
气味辛散而平和。（陶隐居说：葱白性冷，葱青色热；在伤寒方剂中，不得使用葱青。）能发汗解肌，疏通上下部的阳气。（张仲景的白通汤、通脉四逆汤中，都加入葱白以通达血脉、回阳救逆；如果是面赤且虚阳上浮格拒于上的情况，尤其需要使用它。）治疗伤寒引起的头痛。
时行疫病导致的热盛狂躁。阴毒腹痛。（对于阴证厥逆，可将葱白安放在脐上熨烫。）治疗脚气病和奔豚气。有益明目作用。（因为白睛归属于肺。）缓解耳鸣。通利大小便。（李时珍说：将盐吹入尿道中的葱白，治疗小便不通以及转胞危急的情况，效果极佳。）气机通畅则血液运行活跃。（气是血的统帅。）因此用于治疗吐血、鼻衄、便血、痢疾带血、跌打损伤出血。（用火煨熟后研粉外敷，止痛且不留疤痕。）治疗乳痈和风痹。通乳汁、安胎。（配合香豉和阿胶，治疗胎动不安。）因其能通气，所以具有解毒功效。能解除药物毒性、鱼肉毒性、蚯蚓毒性。涂抹治疗狗咬伤。
多吃使人神志昏沉、头发脱落。引起虚气上冲。取用葱白部分，最好连须一起使用。与蜂蜜同食，会致人死亡。（《百一方》记载：患有外痔的人，先用木鳖子煎汤熏洗，再用青葱汁液调和蜂蜜外敷，其凉感如冰。）与枣同食，会使人患病。与犬肉、雉肉同食，会使人患血病。
葱青叶，治疗水肿足肿。（将茎叶煮汤浸泡患处，每天三到五次，效果奇妙。）葱汁，（金疮出血时，取葱加热，取汁涂抹伤口。）
薤（别名：小根蒜）。性滑，能利窍泄滞。
味道辛苦，性温而滑。能降气调中，散血生肌，泄除下焦大肠的气滞。治疗泄痢导致的里急后重。（李好古说：里急后重是因为气滞，在四逆散中加入薤以泄除气滞；按之，里急后重有气虚、血虚、火热、风燥等不同原因，应当随证施治，不要固执于一种说法。）治疗胸痹刺痛、肺气喘急。（取其滑利泄滞的作用。）安胎顺产。涂抹治疗烫伤火伤。（与蜂蜜捣烂外敷。）属于滑利性质的药物，没有积滞者勿用。关于补虚的说法，千万不要相信。叶子像韭菜但中间是空的。（叶片光滑，露水难以停留，所以说“薤露”。）根部像大蒜。取白色部分使用。
Nature is light, with the functions of releasing the exterior, harmonizing the interior, diffusing and unblocking Yang Qi, and invigorating blood.
Pungent in dispersion and neutral in temperature. (Tao Hongjing stated: Scallion white is cold, scallion green is hot; in formulas for Cold Damage, scallion green must not be used.) It induces sweating and releases the muscle layer. It unblocks Yang Qi throughout the upper and lower body. (In Zhang Zhongjing's Bai Tong Tang [White Unblocking Decoction] and Tong Mai Si Ni Tang [Unblock Pulse Four Reversal Decoction], scallion white is added to unblock the pulse and restore Yang; especially when there is facial redness due to floating Yang repelled upwards, it is particularly necessary to use it.) It treats headache caused by Cold Damage.
It treats fever and mania from epidemic diseases. Yin toxicity abdominal pain. (For Yin syndrome with cold extremities, place scallion white on the navel and apply heat.) It treats podagra (Hong Kong foot) and Ben Tun [Rushing Pig] qi. It benefits the eyes. (The white part of the eye belongs to the Lung.) It relieves tinnitus. It promotes urination and defecation. (Li Shizhen said: Blowing salt into a urethra-inserted scallion white is extremely effective for treating urinary retention and critical cases of bladder displacement.) When Qi flows freely, Blood moves actively. (Qi is the commander of Blood.) Therefore, it treats hematemesis [vomiting blood], epistaxis [nosebleed], hematochezia [blood in stool], bloody dysentery, and bleeding from traumatic injuries. (Roasted over fire, ground, and applied externally, it stops pain without leaving scars.) It treats breast abscess [Ru Yong] and wind-bi [wind-damp obstruction]. It promotes lactation and calms the fetus. (Combined with Fermented Soybean Paste [Xiang Chi] and Donkey-hide Gelatin [E Jiao], it treats restless fetus.) Because it promotes Qi flow, it can detoxify. It neutralizes drug poison, fish/meat poison, and earthworm poison. Applied topically, it treats dog bites.
Excessive consumption causes mental confusion and hair loss. It triggers upward rushing of deficient Qi. Use the white part, preferably with the roots. Consuming it with honey can be fatal. (The *Bai Yi Fang* records: For patients with external hemorrhoids, first fumigate and wash with a decoction of Momordica charantia seed [Mu Bie Zi], then apply a paste made of scallion juice mixed with honey, which feels as cool as ice.] Consuming it with dates causes illness. Consuming it with dog meat or pheasant meat causes blood disorders.
Scallion green leaves treat edema with swollen feet. (Boil stems and leaves to make a decoction for soaking, three to five times daily, which is excellent.) Juice: (For traumatic wounds with bleeding, take scallion, heat it, and apply the juice.)
Xie [Allium macrostemon / Chinese Leek]. Nature is slippery, promoting orifices and draining stagnation.
Pungent and bitter, warm and slippery. It directs Qi downward and harmonizes the Middle Jiao. It disperses blood and generates flesh. It drains Qi stagnation in the Lower Jiao and Large Intestine. It treats dysentery with tenesmus. (Li Haogou said: Tenesmus is due to Qi stagnation; adding Xie to Si Ni San [Four Reversal Powder] drains the stagnation. Note that tenesmus varies according to Qi deficiency, Blood deficiency, Fire-Heat, or Wind-Dryness; treatment should follow the pattern differentiation, do not adhere rigidly to one theory.) It treats chest bi [obstruction] with stabbing pain and asthma/wheezing due to Lung Qi rebellion. (Utilizing its slippery and draining nature.) It calms the fetus and facilitates childbirth. Applied topically, it treats burns and scalds. (Mashed with honey.) As a slippery and lubricating substance, it should not be used when there is no stagnation. Do not believe claims regarding its tonifying deficiency properties. The leaves resemble chives but are hollow. (The leaves are smooth, making it difficult for dew to stay, hence the term "Xie Lu" [Leek Dew].) The root resembles garlic. Use the white part.