Acupuncture has a pain-relieving function and is widely used to alleviate chronic pain.
Tips
usage
镇痛 appears frequently in medical contexts as a verb or attributive: 镇痛药 (painkiller), 镇痛剂 (analgesic agent), 镇痛效果 (analgesic effect). Compare 止痛 (to stop pain), which is more colloquial and focuses on stopping pain rather than suppressing it.