Chiropractor!!! Seriously , mine is a Godsend! I was self treating "tendonitis" for about 2 months after two of my fingers went numb and she diagnosed me with Thorasic outlet syndrome...nerve compression between the neck and clavical.I now have feeling back (1 finger is "dull") which can take about a year to return. I have kicked a 3 year daily regime of aleve for neck tension....a godsend!!