ReliefBands is a lightweight wearable drug-free antinausea device approved by the FDA.  In some people, they mitigate general nausea, motion sickness and morning sickness. It is worn like a wristwatch but on the inside of the wrist (with a electroconductive gel), where it electrically stimulates the median nerve, generally working within ten minutes, with no side effects. The replaceable battery lasts for 144 hours. $225, www.reliefband.com