Have you heard of dry needling (DN)? You may be confusing DN with acupuncture, and whilst they are similar, there are a number of key differences.
The practice of dry needling involves inserting a fine filament needle into a trigger point and is typically used to treat the pain associated with injuries and/or very tight muscle fibre. A trigger point is a tender spot in a tight band of muscle which causes pain when pressed or squeezed. 
Dry needling is an efficient technique for the treatment of muscular pain and myofascial dysfunction, and is xtremely effective for relaxing overactive muscles. The needles are very small and often the client does not get anything more than a tiny sensation when they are inserted.
Please note that dry needling is different to acupuncture which incorporates many different approaches including working with "chi" (energy flow) and meridians. Yes, many of the points worked on are the same, however the easiest way to think of it is that DN is a scientific approach adopted by many remedial therapists, physiotherapists and myotherapists whereas acupuncture tends to be performed by those trained in traditional Chinese medicine.
If you are interested in trying dry needling, please mention it at your next appointment. A small surcharge applies.