There are many ways to treat wood termites.Heat, Microwave and many more. I would recommend to get professional help so they won't spread around the house.
Here is some info on how to recognize the pest:
http://www.oldhouseweb.com/stories/Detailed/10324.shtml
http://www.aces.edu/pubs/docs/A/ANR-1170/ANR-1170.pdf
http://www.doyourownpestcontrol.com/termites/wood_destroying_insects.htm
