larocaine

例句：

1. 1. This medication is used to treat pain and inflammation.
   这种药物用于治疗疼痛和炎症。
2. 2. The doctor prescribed lidocaine for the patient's nerve pain.
   医生给病人开了利罗卡因来缓解神经痛。
3. 3. Lidocaine is a local anesthetic that numbs the skin.
   利罗卡因是一种局部麻醉剂，可以麻木皮肤。