I have just been diagnosed and presently find that where I live is quite damp and there is a great deal of humidity. If not Ontario then where? Any suggestions?

The consensus in my house is get out of Ontario! As we all know, it is humid as hell, even in the winter. The best would be to go to Alberta or Saskatchewan, as they are both dry and away from large bodies of water. And plus, both are gorgeous provinces. If you like a view of the mountains, move to Calgary, as you can see them from just about anywhere in the city. Good luck.