I was recommended acupuncture for the treatment of pain for a medical condition I have. I did a few sessions and honestly, I didn't notice it make any difference
However, I think the whole concept of pressure-points (not just in terms of acupuncture but also in other practices such as massage) has some merit when it comes to muscular pain. Trigger-point or pressure-point massages have done wonders for my back when I've had pain related to muscle tension.