wear off
phrasal verb with wear verb uk/weər/ us/wer/ wore | worn
B2 逐渐消失;消逝
If a feeling or the effect of something wears off, it gradually disappears.
Most patients find that the numbness from the injection wears off after about an hour. 大多数病人发现注射产生的麻木感在一个小时左右以后会逐渐消失。