There is no such thing as the best way to eat Allium cepa, it can be decocted and taken internally or added into pills or powder, its effects include promoting the flow of qi and clearing stagnation, promoting the flow of qi and clearing stagnation, and promoting the flow of yang and dispersing knots (warming yang qi to dissipate stagnation). It is mainly used for treating dry vomiting, diarrhea and dysentery. It should be applied under the guidance of traditional Chinese medicine practitioners. Allium cepa is a plant-based Chinese medicine, warm in nature, pungent in flavor, and enters the heart, lung, stomach and large intestine meridians. There is no such thing as the best way to eat Allium cepa, it can be used in pills, powder, or decoction for internal use, follow the doctor’s instructions for medication. The effects of this product include promoting Yang and dispersing knots (warming Yang qi and dissipating stagnation), regulating Qi and broadening the chest, moving Qi and directing stagnation, and treating diarrhea and dysentery (discomfort in the lower abdomen, wanting to relieve bowel movement very much, and feeling of incomplete bowel movement after defecation), chest paralysis (tightness and pain in the chest), cardiac pain, coughing with excessive phlegm, and distension of the epigastrium (abdomen) (stomach fullness and discomfort). The adverse reactions and contraindications of Allium sativum are not clear at present. Note: It should be taken with caution for those with Qi deficiency; it should not be used for those without stagnation; it should not be consumed in febrile diseases with Yin deficiency; and it is irritating to the gastric mucosa if taken for a long time. If there is a need for Allium cepa, it should be applied under the guidance of a traditional Chinese medicine practitioner, and should not be taken on its own to avoid adverse consequences.