China Oel (peppermint oil)

i do not know why it is called china oil. i do not know why in chinese it is called german oil. what i do know is that this works miracles for nausea and as someone who gets motion sickness in any moving vehicle, it is something i never leave the house without. one drop on the tongue and the nausea is gone. i once saved an entire bus of colleagues while stuck in stop and go traffic back into the city from upstate. they still talk about it