Well, I haven't traveled overseas in years. The few things I can suggest are:
1. Stressing will not help. Try to relax and start looking forward to your trip.
2. If you have your meds at a good level, don't mess with them, making yourself have to "readjust" while on vacation. If you have backup meds that you take during a flare (prednisone, or whatever), I'd bring some as a safety - even you don't use them, knowing you have them may help you relax.
3. You know your limitations - make sure you pack accordingly. I, personally, cannot live w/o my sneakers....make sure you have comfortable clothing, shoes, etc. you know you will be able to walk, travel, and sleep in.
4. If you have a problem sitting for long periods of time, I'd make sure that you have a seat on the plane that you know you are most comfortable sitting at. If you need to get up and stretch your legs a lot, you might want to make sure you get an aisle seat.
5. Take whatever precautions you take normally to help your immue system - keep hand sanitizer with you, take your vitamins, be smart with washing after touching things...etc.
6. I don't think there are extra vaccines you'll need du to the RA - but, it wouldn't hurt to talk to the doctor (rhuemy and pcp) about
suggestions on helping keep yourself healthy while traveling. Though, you'd THINK they'd tell us for general health about
them if there were any!
Good luck and have a fabulous trip! ***