Interesting. I never had to use one, but maybe some one on the medical staff can do it. Or even somebody in the Lotus Spa.
Heck, just call Princess and ask.
SS Norway (12 times) '85 - '97; Radiance OS 06/01; Island Princess 11/04, Grand Princess 11/04/05, Golden Princess 7/21/06, Golden Princess 2/24/07, Explorer of the Seas 12/23/07, Island Princess 11/15/08