Old wives tales about tick removal (application of heat, gasoline, etc.) actually cause the tick to disgorge its infected stomach contents into the victim’s blood stream. The methods demonstrated here by Lyme disease expert Dr. Ernie Murakami are designed to avoid that. One method, for use by doctors, puts a ‘blister’ of xylocain and adrenalin under the tick, causing it to retract its mouth parts. The do-it-yourself straw & knot method (when you can’t get to a doctor) ties off the tick’s mouth parts from its stomach contents, and to be successful requires “subtle but constant upward pressure on the string.”
Thanks to XMRV Global Action’s Facebook page for the link.