My DD has been sick in the car 4 times in the last couple of weeks. I can only put it down to travel sickness as she is otherwise well. It is getting to the point where she doesn't want to go out in case she is sick and we are due to go away in a couple of weeks and the drive will be about 4 1/2 hours. I have never been car sick in my life so have no idea what to do. Any tips/suggestions.