Hello Wayne.
I have had the pleasure of doing quite a lot of small boat sailing ( including Biscay in winter ) and have seen many friends take a variety of measures to combat seasickness and would suggest that -
Armbands rarely work
If the weather permits, when you begin to feel queasy, go out into the open air, take slow deep breaths and look towards the horizon. This limits the extent to which the brain is confused by conflicting information coming from the eyes and the balance mechanisms in the ears ( the cause of all travel sickness ).
If this doesn't work, go and lay down and again take slow deep breaths.
If you decide to take tablets, Stugeron seem to work best but be careful if you are the driver; they can have a side-effect of making you feel quite woozy.
On the bright side, as Gill C intimates, you should feel better in the morning and if you are sick, you will wonder where the hell the carrots came from..!
Olly.