OMG! cute but deadly with its friends

I must say, I'm a pretty big homeopathy skeptic, my wife is not. Our dog used to always get motion sick when traveling in the car. And I mean ALWAYS. We give her a "homeopathic remedy" for motion sickness and she doesn't get sick when we use it. If we don't, she gets sick. Could be coincidence...as far as I know, dogs can't experience the placebo effect.