I used to get it bad but after 80 trips to Deep Tempest I am cured. Best pills try Travacalm. Travacalm has two active ingredients whereas Kwells and a few of the others only have one.
If Travacalm don't work on their own, also take a couple of Blackmore ginger pills. Cured my number one deckie who doesnt need pills anymore.
If that doesn't work, take up Chess!!!
Barnacle