遵医嘱

wǒ yī zhí zūn yī zhǔ

我一直遵医嘱。

I always follow the doctor's advice.

tā méi zūn yī zhǔ áo yè dào hěn wǎn

他没遵医嘱，熬夜到很晚。

He didn't follow the doctor's advice, and stayed up late.