I wrote this before, don't know why it deleted. I really think you should try Halotherapy, also known as Salt room therapy. Here's a link to abc 7 news, it's about allergies and salt treatment. http://abclocal.go.com/kabc/story?section=news/health/your_health&id=7340604 I'm not sure where you're from but I know there's one in Los Angeles, CA. Here's the link to their website http://saltchalet.blogspot.com/ I'm sure you'll find this interesting and helpful.