I had one last year at York and they used some throat spray, it was awful, it seemed to take ages and I gagged for England!! I also had one at Turnov, without anything!! I think if I had insisted I could have had anesthetic but it was so quick, only enough time to go down, have a quick look and back out just as I was thinking this is horrible lol. So even though it wasnt nice, it was quick and not too bad really, better than York anyway! I think they like you awake if poss so you can swallow it down, but it's much nicer to be knocked out!!