Here is a link I came across which kind of illustrates the Constable's method for relieving air sickness. It even has a schedule which you can follow.
http://www.nomi.navy.mil/24page.htm
Scroll down until you find 'Self-Paced Airsickness Desensitization (SPAD)' and download 'SPAD PowerPoint97 Presentation (19 slides, 3MB)'.
OTB