Detailed Product Description For the Campanulaceae Platycodon dry plant roots, bitter, Xin, sexual tepid. The human lung. Be able to ... cough expectorant and has Xuanfei, removing the abscess role. Source: "Shen Nong's Materia Medica" Effect Category: ... reed head, go through, in the final lung, stomach. Efficacy: Xuanfei, expectorant, Liyan, removing the abscess. Indications: cough, sputum, ...