ScienceDaily (Apr. 10, 2009) — Cancer patients who wore acupressure wristbands had much less nausea while receiving radiation treatment, making the bands a safe, low-cost addition to anti-nausea medication, according to a study published in the Journal of Pain and Symptom Management by University of Rochester Medical Center researchers."
http://www.sciencedaily.com/releases/2009/04/090408145348.htm

[Note: Since most vasculitis patients are taking some form of chemotherapy to suppress the immune system, and since they are also sensitive to other medications, this non-medicinal remedy for nausea seems especially appropriate. -JWC]