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Pinellia ternata, a medicinal plant of Araceae, is a tuber. In summer and autumn, when the stems and leaves are flourishing, the Pinellia ternata is dug out, the skin and fibrous roots are removed, and dried or dried. Because of its high toxicity, it is often used after processing. Pinellia ternate, Jiang Banxia Pinellia ternate and Qing Pinellia ternate are divided into different processing methods. It is pungent, warm and toxic; Enter spleen, stomach and lung meridians. It has the effects of eliminating dampness, resolving phlegm, harmonizing middle energizer, invigorating stomach, reducing adverse reactions, stopping vomiting, relieving swelling and resolving hard mass, and can be used externally to relieve swelling and pain.