It is common for people to seek acupuncture for pain relief. Anytime there is pain in Chinese Medicine, it simply means that qi (the energy) is blocked. There are many different reasons for this blockage of qi, but the answer to all of them is to get the qi flowing in a smooth way by removing any blockage.
Sometimes the needles will go where you are experiencing the pain. Other needles will be placed at other parts of the body that seem to have nothing to do with your area of pain. For example, if there is knee pain, needles may be placed at the knee, above or below the knee, at your ankles and even your elbows. All of these places have points that correspond to the pain in your knee from a Chinese Medicine perspective.
In the West, we often think of the body as being separate parts. Chinese Medicine knows that one part of the body absolutely impacts another part along pathways of energy in the body. Acupuncture for pain relief can help dissipate and manage your pain.