Laughing Gas Can Help Women Manage Pain During Labor : Shots - Health News : NPR

Move over, epidurals, here comes nitrous oxide. After enjoying popularity in the U.S. for managing labor pain until the mid-20th century, it was dropped in favor of anesthesia. Now it’s back.

http://www.npr.org/sections/health-shots/2016/11/07/500273361/laughing-gas-gives-women-another-option-to-manage-labor-pain