泻肝破气、散积。
辛苦而温。色青气烈。入肝胆气分。疏肝泻肺。（凡泻气药皆泻肺。）引诸药至厥阴之分。
（
柴胡疏上焦肝气、青皮平下焦肝气。）下饮食。入太阴之仓。破滞削坚。消痰散痞。治肝气
郁积。胁痛多怒。久疟结癖。（入肝散邪、入脾除痰、故清脾饮以之为君。）胸膈气逆。疝痛
乳肿。（丹溪曰∶乳房属阳明、乳头属厥阴、乳母或因忿怒郁闷、浓味酿积、致厥阴之气不
行、故窍不得出、阳明之血腾沸、故热甚而化脓、或因其子有滞痰膈热、含乳而睡、嘘气致
生结核者、初起便须忍痛揉软、吮令汁透、自可消散、治法、俱宜以青皮疏肝滞为主、再加
石膏清胃热、栝蒌消肿、甘草节解毒、余如没药、橘叶、金银花、蒲公英、皂角刺、当归、
皆可随宜用之、少佐以酒、久则凹陷、名乳岩、不可治矣。）最能发汗。（皮能达皮、辛善发
散。）气虚及有汗者忌用。（性颇猛锐、如人年少壮、未免躁暴、及长大而为橘皮、如人至老
年、烈性渐减、经久而为陈皮、则多历寒暑、躁气全消也。）橘之青而未黄者。（古方无用者
、宋以后、始与陈皮分用。）去瓤切片。醋拌炒。（陈皮升浮入脾肺、治高、青皮沉降入肝胆
、治低、炒之以醋、所谓肝欲散、急食辛以散之、以酸泄之、以苦降之也。）叶、治乳痈、
胁痈、肺痈。（皆能入厥阴、行肝气、消肿散毒、绞汁饮之。）肉、生痰聚气。（时珍曰∶橘
皮下气消痰、其肉生痰聚饮、表里之异如此。）核治疝痛。腰肾冷痛。去皮炒。
(Pingqi) purges the Liver, breaks Qi stagnation, and dissipates accumulations.
It is acrid, bitter, and warm in nature. Its color is green, and its aroma is potent. It enters the Qi aspect of the Liver and Gallbladder meridians. It soothes the Liver and purges the Lung. (Any herb that purges Qi also purges the Lung.) It guides other herbs to the Jueyin division.
(Chaihu soothes the Liver Qi in the Upper Jiao, while Pingqi calms the Liver Qi in the Lower Jiao.) It directs downward food stagnation, entering the Taiyin Spleen's granary. It breaks stagnation, reduces hardness, eliminates phlegm, and dissipates masses. It treats Liver Qi depression and accumulation, hypochondriac pain, irritability, and chronic malaria with formed masses (because it enters the Liver to scatter pathogens and the Spleen to remove phlegm, Qingpi Yin uses it as the sovereign herb). It treats rebellious Qi in the chest and diaphragm, hernia pain, and breast swelling. (Zhu Danxi said: The breasts belong to the Yangming meridian, and the nipples belong to the Jueyin meridian. If a nursing mother suffers from anger or depression, compounded by the accumulation of rich and heavy foods, the Qi of the Jueyin meridian fails to circulate, so the orifices cannot open; the blood of the Yangming meridian boils upward, causing extreme heat and suppuration. Or, if the infant has stagnant phlegm and heat in the diaphragm, sleeping while sucking on the nipple causes exhaled Qi to generate nodules. In the early stage, one must endure the pain, massage until soft, and suck to ensure milk flow, which will naturally dissipate. The treatment method should primarily use Pingqi to soothe Liver Qi stagnation, supplemented by Shigao (Gypsum Fibrosum) to clear Stomach heat, Gualou (Trichosanthis Fructus) to reduce swelling, Gancao Jie (Radix Glycyrrhizae with knot) to detoxify, and others such as Moyao (Myrrha), Ju Ye (Citrus Reticulatae Folium), Jinyinhua (Lonicerae Japonicae Flos), Pugongying (Taraxaci Herba), Zaojiaoci (Gleditsiae Spina), and Danggui (Angelicae Sinensis Radix) can be used as appropriate, with a little wine added as an adjuvant. If it becomes sunken after a long time, it is called Ru Yan (breast cancer) and is incurable.) It is most capable of inducing sweating. (The peel can reach the skin, and acridity is good at dispersing.) It is contraindicated for those with Qi deficiency and spontaneous sweating. (Its nature is quite fierce and sharp, like a young person in their prime who is inevitably restless and violent; when it matures into orange peel, it is like a person reaching old age, where the fierce nature gradually decreases; after aging for a long time into Chenpi (aged tangerine peel), having experienced many colds and summers, the dryness and agitation are completely eliminated.) It is the green peel of the citrus fruit before it turns yellow. (Ancient prescriptions did not use it; after the Song Dynasty, it began to be used separately from Chenpi.) Remove the pith and slice. Stir-fry with vinegar mixed. (Chenpi ascends and floats, entering the Spleen and Lung meridians to treat upper conditions; Pingqi descends and sinks, entering the Liver and Gallbladder meridians to treat lower conditions. Stir-frying with vinegar follows the principle: "The Liver desires dispersion; eat acrid quickly to disperse it, use sour to drain it, and use bitter to descend it.") The leaves treat breast carbuncle, hypochondriac carbuncle, and lung carbuncle. (All can enter the Jueyin meridian, move Liver Qi, reduce swelling, and dissipate toxicity; squeeze for juice and drink.) The flesh generates phlegm and gathers Qi. (Li Shizhen said: The orange peel descends Qi and eliminates phlegm, whereas its flesh generates phlegm and gathers fluids; thus, the effects of the exterior and interior are different.) The seeds treat hernia pain and cold pain in the waist and kidneys. Remove the peel and stir-fry.