My Girlfriend gets Vertigo on occasion, her nausea can last for days. She uses the "Epply Maneuver", which helps the dizziness.
http://www.merck.com/mmpe/sec08/ch086/ch086c.html
Her doctor has also prescribed Meclizine for the nausea.
She has objective vertigo in which it feels like the room is spinning around her.
Subjective vertigo is where you feel YOU are spinning inside the room.