Just a thought, anytime we go to Cancun at our resort and excursions we only drink bottled Water. When your in the hospital is the water /ice chips filtered or bottled. Be very careful brushing your teeth I would bring a small mouthwash and use that instead of tap water. All kinda research done on flying post op. The recommendations are never ever a window seat always an Aisle. So given a choice do that seating. Reason being window seat you tend to not get up, middle seat you are also compressed on each side and try to make yourself smaller by keeping your arms pulled in. Aisle seat you have one side free and flying postoperative you should get up every half hour and walk the aisle. Some type of compression socks if not nylons to help with circulation to avoid blood clots. Everyone should do this flying get up every half hour for 5 minutes, driving every 2 hours get out of the car and walk around for 10 minutes. Flights 4hours driving 6 hours put you at higher risk of clots. Again good luck