How to talk to a patient about delusional infestation

Peter Lepping, consultant psychiatrist and honorary professor at Betsi Cadwaladr University Health Board in North Wales, joins us to discuss his experience dealing with patients who have delusional infestations. He talks about how to broach the diagnosis, and gives practical tips on how to investigate this difficult condition. Read his practice pointer:

http://www.bmj.com/content/350/bmj.h1328