饮鸩止渴
[词典] quench a thirst with poison; a supposed remedy having the opposite effect; drink poison [poisoned wine] to quench (a raging) thirst; seek temporary relief regardless of the consequences.
[例句]
Historical experience shows that trying to save a country's economy with protectionism is like trying to quench a thirst with poison.
历史经验表明，用保护主义来挽救一个国家的经济就像是饮鸩止渴。