抽薪止沸　

◎ 抽薪止沸 chōuxīn-zhǐfèi

[stop the boiling by taking out the fire;(fig) take drastic measures to stop sth.] 抽去锅底柴薪,以止息锅内汤液的滚沸外溢。比喻从根本上解决问题