Pain, numbness, pain
Scientists have pinpointed the trigger that leads to a burning feeling when some anesthetics are administered.
100….98….97….96….95….
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![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2008/06/8206.jpg?resize=300%2C269&ssl=1)
“Relax. Keep counting,” the anesthesiologist says to the patient, who is having her hip surgically replaced. “You won’t feel a thing.”
Though the woman can no longer feel the dull ache in her hip, she can feel a prickly burning in her arm where a general anesthetic drips intravenously into her veins. It is a sensation she doesn’t remember the doctor telling her about, she thinks, as she forces herself to mouth a few more numbers…94 ….93….92….