以毒攻毒 (yǐ dú gōng dú) | Meaning: to cure ills with poison (TCM) | Chinese Idiom with Pinyin & Origin

to oppose each other with equal harshness (idiom); tit for tat · measure for measure针锋相对zhēn fēng xiāng duì

a tooth for a tooth (retaliation)以牙还牙yǐ yá huán yá

an eye for an eye (idiom); fig. to use the enemy's methods against him · to give sb a taste of his own medicine以眼还眼yǐ yǎn huán yǎn

lit. please Sir, get into the boiling pot (idiom) · fig. to give sb a taste of his own medicine请君入瓮qǐng jūn rù wèng

to cure ills with poison (TCM) · to fight evil with evil · set a thief to catch a thief · to fight fire with fire