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Since then, they have become two distinct species; hence the term "Ju Pi" (Exocarpium Citri Reticulatae) originally did not contain the character for "You" (Pomelo). How could there be two different substances with identical therapeutic applications? This indicates that the character "You" is an error. Later generations, failing to investigate its true meaning, were confused by the character "You," leading to arbitrary distinctions, which is also a mistake. Moreover, even Green Ju (Citrus reticulata 'Chachi') and Yellow Ju differ in treatment; how much more so since You is a separate species. Guo Pu stated: "You resembles orange but is larger than ju." This demonstrates an understanding of the distinction between Ju and You. If this is not clarified now, future generations may mistakenly treat You Pi (Exocarpium Citri Grandis) as Ju Pi, causing endless trouble. Since ancient times are long past, later scholars can infer the truth through reasoning. For Ju, only the peel and seed are used. The peel is highly demanded worldwide. It should still be soaked in water to remove the albedo (pith). Other processing methods follow the classics and annotations. Collecting and storing the seeds and peels oneself is preferable. A person suffering from Qi cough for nearly a year was instructed to take roasted Ju Pi (Exocarpium Citri Reticulatae), roasted Sheng Jiang (Rhizoma Zingiberis Recens), and Shen Qu (Massa Medicata Fermentata) in equal parts, ground into powder, and formed into pills the size of paulownia seeds. Taken after meals and before bed with rice broth, 30-50 pills per dose. His chronic bladder condition also healed concurrently. However, this efficacy relied on Chen Pi (aged Exocarpium Citri Reticulatae), one of the "Six Aged Herbs." For Kidney Zhue (chronic wasting disease) with lower back pain or Qi pain in the bladder, slightly stir-fry the seeds, remove the shell, grind into powder, and take with wine; it will heal.

Currently, many sell Gan Pi (Exocarpium Citri Reticulatae 'Chachi' or related citrus peels) as Ju Pi, so careful selection is necessary. Gan Pi is not very bitter, whereas Ju Pi is extremely bitter, remaining bitter even when ripe. Distinguishing Ju from Gan based on whether the peel is tight or loose is unreliable due to regional variations, as both can exhibit either texture. People with cold Spleen and Kidney who consume too much Ju flesh may suffer from internal cold or diarrhea/dysentery.

Nowadays, people mainly regard it as a fruit, or use the peel to make tea for guests, rarely seeing it used in medicine. Eating it helps sober up quickly from hangovers.

Eating plums causes saliva secretion because Water generates Wood (Kidney Water nourishes Liver Wood). Saliva loss damages teeth. The Kidney belongs to Water, and externally manifests as teeth; thus the connection. Wang Shuhe said: "The Bladder and Kidney together form the residence of body fluids." Although this statement is crude, the principle holds true. Smoked plums become Wu Mei (Fructus Mume); dried plums stored in sealed containers become Bai Mei.

They are found in Jiangdong, Jiangxi, Hunan, Hubei, and Sichuan. Named after its shape resembling a Pipa (lute), it is effective in treating Lung Heat cough. The flowers are white and bloom earliest in spring. The fruit is bullet-sized, ripening in April-May, yellow like apricots, slightly hairy, with thin flesh. Its nature is neutral, differing from the leaves. A woman suffering from prolonged Lung Heat cough, with body heat feeling like burning, emaciation, and impending consumption (Lung Tuberculosis), was treated with equal parts of Pi Pa Ye (Folium Eriobotryae), Mu Tong (Caulis Akebiae), Kuan Dong Hua (Flos Farfarae), Zi Wan (Radix Asteris), Xing Ren (Semen Armeniacae Amarum), and Sang Bai Pi (Cortex Mori), with half the amount of Da Huang (Radix et Rhizoma Rhei). After standard processing, they were ground into powder, mixed with honey, and formed into pills the size of cherries. One pill was held in the mouth to dissolve slowly after meals and before sleep. She recovered before finishing the course.