Campanulaceae seed

chinese medicine, Platycodon of bitter, acrid, flat, lungs through, with Xuanfei cough, pharynx Sanjie, carbuncle drainage and other effects, commonly used in the treatment of cough, sputum, expectoration unhappy, mediastinoscopy full of nausea, sore throat and hoarseness, lung abscess, chest pain, cough, vomiting pus and blood, phlegm yellow stench embolism.