My fiance and I are going on our first cruise on Sept. 25, 2000 and he's suffering from sinus and allergy problems right now because of weather changes and high pollen counts. We are going to Key West and Cozumel. Do you know if the tropical climate will help clear up his sinus problems or make them worse? Also, is there anything you can recommend to take along just in case?? He's having sinus headaches and achy eyes.