It’s amazing to think that acupuncturist techniques have come this far.
Needle medicine is when you stick needles into people to cure them. This is done via an acupuncturist.
This word uses the kun'yomi reading for 針 and the on'yomi reading for 医. You haven't learned this reading for 針 yet, so here's a mnemonic to help you:
If you do acupuncture and stick a bunch of needles in your back it's going to look really hairy (はり). Needles look just like metal hairs when they're coming out of someone. Just picture hairy little needles all over your body and you'll never forget this reading!