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Acupuncture to the wrist can help to relieve nausea and vomiting in patients following surgery, according to a review involving more than 3,000 patients. It appears that stimulating the pericardium, or P6, acupuncture point on the wrist (see photo for location) reduces the nausea that affects about four out of five patients who have had anesthetics. Patients who received P6 acupuncture were about 28 percent less likely to feel nauseous or be sick than those who received a placebo or sham treatment. Acupuncture, which involves inserting very fine needles into the skin at specific points in the body, was also shown to be just as good as routine anti-nausea drugs in head-to-head trials. If you are interested in using acupressure but don't like needles, there's good news. Needles aren't necessarily required. Accupressure wrist bands (called Sea Bands) are available at most sports stores and are useful for all types of nausea, even morning sickness related to pregnancy.
The Cochrane Database of Systematic Reviews 2004