transderm scapolamine patches can keep you from getting sick, may cause headaches though. The more trips you take less susceptible you are but everyone has sea conditions that do not agree with them Nice fish.
Couple of things to help with the sea sickness. Bonine works pretty well if you take it right. I take half a pill Friday morning before a Saturday trip then a hole pill Friday evening. Then half one Saturday morning before heading out. Also you can take a foam ear plug and put in your right ear if you're left handed or left ear if you're right handed. I haven't tested this one but I've heard old salts swear by it. A buddy of mine says it works too.