A few tips on barking out the back,I've done k's of miles of ocean yacht racing and have seen some bad cases,one old yacht owner would always say,you're not sick until your on the oxygen.Had one guy take a quell when he got on the boat in Sydney and by the time we had sailed past Coogee beach he was hallucinating that bad he was about to step off the back of the yacht to go and lock his car back in sydney,he was sent below.another guy wore patches and made a comment how we'll they worked,only to become crook almost immediately after we had told him it had washed off about four hours ago.pressure point bands seem to work the best with no side affects,Tips,DON'T go below,try and stand and fish rather than sit,don't lay down,while standing,watch the horizon rather than the boat or the water in front of you,eat light foods,apples are good,,if none of these work go to a good book shop bye a good book,find a big tree to sit under and read your book