饮鸩止渴

飲鴆止渴
yǐnzhènzhǐkě
  1. lit. drinking poison in the hope of quenching one's thirst (idiom)
  2. fig. a supposed remedy that only makes matters worse

CEDICT

to do something harmful in order to seek any relief

Wiktionary

比喻只求解救眼前困难，而不顾将来的大祸患。参见「止渴饮鸩」条。

重編國語辭典

用有害的办法解决眼前困难，不顾严重的后果

維基詞典

Entry Composition

=1 饮 yǐn old variant of 饮 yǐn
=1 饮 yǐn to drink
2 鸩 zhèn
  1. legendary bird whose feathers can be used as poison
  2. poisonous
  3. to poison sb
3 止渴 zhǐkě to quench one's thirst