Allium cepa has the efficacy of promoting yang and dispersing knots (warming yang qi and dissipating stagnation), moving qi and directing stagnation. It is contraindicated for those who are allergic to this product, and should be used with caution in allergic individuals and those with weak qi and stomach. Allium cepa is a traditional Chinese medicine, pungent, bitter, warm, to the heart, lungs, stomach, large intestine meridian, has the effect of Yang dispersal, qi stagnation, clinically used in the treatment of thoracic paralysis (chest tightness and pain), heart pain, epigastric (abdomen) plumping (stomach distension and discomfort), flatulence, diarrhea and dysentery, anxious and then heavy (uncomfortable in the lower abdomen, want to defecate very much, after the bowels of the bowels of the bowels of the bowels of the bowels of the bowels of the bowels of the bowels of the bowels of the bowels of the bowels of the bowels of the bowels of the bowels of the bowels of the bowels). Note Allium sativum is contraindicated in those who are allergic to the product, and should be used with caution in those with allergies and weak qi and stomach. Allium cepa can be used alone or in combination with other drugs, such as with Psidium guajava, Semen xia, Citrus aurantium, etc. It can treat chest paralysis caused by phlegm and stagnation of phlegm and blood stasis, and the lack of vitality of the thoracic yang, which is usually manifested as stuffy pain in the chest and poor respiration, or even thoracic pain that runs through the back, and gasping and not being able to lie down. It is recommended that patients with therapeutic needs take this product under the guidance of a clinician and do not use it without authorization.