Herbs that Clear Heat and Resolve Toxicity

Which of the following herbs is especially useful for treating breast abscess?

Pu Gong Ying is dandelion. It can be used both internally and topically for breast abscess and mastitis. It also treats intestinal abscess.

Source: Bensky, D. (2004). Chinese Herbal Medicine: Materia Medica. Seattle, WA: Eastland Press. pp. 163 [Q565]