1、治乳痈肿痛,可单用本品浓煎内服,或以鲜品捣汁内服,渣敷患处,也可与全瓜蒌、金银花、牛蒡子等药同用;治疔毒肿痛,常与野菊花、紫花地丁、金银花等药同用,如五味消毒饮(《医宗金鉴》);用治肠痈腹痛,常与大黄、牡丹皮、桃仁等同用;用治肺痈吐脓,常与鱼腥草、冬瓜仁、芦根等同用。本品解毒消肿散结,与板蓝根、玄参等配伍,还可用治咽喉肿痛