There is sometimes mild soreness post needling, but the biggest gain is improved movement and function and thereby sending a message to the nervous system to not perceive pain. When pain is not perceived movement improves as does function. Biomedical Dry Needling is typically used post sports injuries, to treat WCB Joint and muscle injuries, post car accidents and for headaches or migraine pain. In some circumstances it is a good prognosticator of outcome which might come about