suit the remedy to the case 对症下药

“对症下药”，汉语成语，意思是“医生针对患者病症用药（apply medicine according to indications）”。常用来比喻“针对事物的问题所在，采取有效的措施”，可以翻译为“suit the remedy to the case，find specific ways (to solve problems)”。

我们迫切需要采用对症下药的战略。

We urgently need to adopt the problem-oriented strategy.

做思想工作必须对症下药。

In doing ideological work, one must suit one's methods to the situation.