You may benefit from seeing a doctor and getting a nasal steroid spray and nasal
antihistamine spray. Those really help my
nasal allergy symptoms. Also, there is an
OTC nasal spray here called NasalCrom. It contains cromolyn which is a mast cell stabilizer. Basically it stops the allergic reaction at the source, the nose. It has to be used every four hours though.
My personal experience is that I would feel better on the island - fewer pollens to contend with.