Effects of acupuncture

I have had a few instances where my lower back was strained or my neck wouldn't turn properly.

The back pain was so severe that walking was difficult, and the neck pain was so bad that I couldn't turn my head from side to side.

At times like this, my go-to treatment is going to a Korean medicine clinic to get acupuncture. I usually get 1-2 sessions, and after 3-4 days, I feel better. It’s as if the pain never happened. Because of that, I don’t easily trust other remedies, but when I twist something or wake up with pain from poor sleep, I go to a Korean medicine clinic.

I heard about herbal medicine for dieting at a traditional Korean medicine clinic I occasionally visit, but I wonder if it really works.

It might be because I don't know well, so if anyone has really seen effects, please share the information.