Never had Amazake before but I used to get motion sickness from riding cars. One time my motion sickness got so bad I puked. In a vain effort, I closed my mouth and tried my best to gulp the puke down. It didn't work so I opened the car window and let it all out. Needless to say, my uncle got a new decal for his car that day. It looked like a Jackson Pollock painting but with bits of rice and chips.