The efficacy of ginger for the prevention of postoperative nausea and vomiting: A meta-analysis
Ginger is one of those knee-jerk natural compounds that I always think of first when it comes to nausea.
This review of 5 separate studies found ginger very effective at reducing post surgical nausea and vomiting. Given the high safety level and low cost, this one makes ginger a no-brainer for first line of defense in many cases of nausea.