【名词&注释】
清热解毒(heat-clearing and detoxifying)、白头翁汤(windflower decoction)、生石膏(plaster stone)、消肿止痛(detumescence analgesic)
[单选题]白头翁汤的功效是()
A. A.清热化湿,涩肠止痢B.清热解毒,凉血散瘀C.清热解毒,凉血止痢D.清热凉血,消肿止痛(detumescence analgesic)E.清热泻火,凉血止血