quench fire with fire—make a matter worse ❍ 你去劝架时为什么还翻旧帐？这不是～么？ Why did you bring up old scores when you went to make peace between the quarrelling parties? Wasn’t it like quenching fire with fire?
以火救火yi huo jiu huo
try to extinguish fire with fire—a wrong method of handling affairs
以火救火yǐ huǒ jiù huǒ
用火来救火灾，不仅不能制止，反而助长其势。比喻解决问题的方法不对头，只能起到助长其趋势的作用。put oil on the fire, make a matter worse, fight fire with fire