Acupuncture treatment has been used for approximately 3,000 years as part of traditional Chinese medicine, according to the University of California, San Diego (UCSD). Acupuncturists use thin, sterile needles to precisely stimulate acupuncture points on your body. Although some may be a bit wary of the practice, it's primarily used to relieve pain, and it has other health benefits, too, such as treating allergies, headaches and asthma. Best of all, it's covered by many health insurance policies. Here's what else you need to know about acupuncture.