I have Autumn allergies. I do every year. They get better after the first frost, but I still have them a bit. I tried the store brand of Claratin-D and it worked for a few days, but then it seemed to backfire. I was out of my herbal stuff. I ordered in my 2 herbal things I take and they have really helped. I usually only have to take them at night. If I wake up in the night, I take them again and it gets me through. Well last night I did fine until this morning. Then I could hardly breath. My nose is totally closed up (feels more like pressure rather than mucous). I do have a lot of mucous in my throat. It is also hard to take a deep breathe. I was talking to a friend on the phone and it got really bad. I told her I was going to step outside for a minute because sometimes that helps it clear up. She suggested maybe the dust was bothering me. I got to thinking there are 2 things that were different. Yesterday for the first time this summer, we closed all the windows in the house. It got down in the mid 40's last night and yesterday morning was a bit chilly as well. The highs are in the low 60's yesterday and the high 50's today. The other thing is I did not sleep with the AC on. I was turning it on at night because it seemed to help. It never really kicked in because the air was cooler, but I think it may help with the humidity. My house is VERY dusty. There is lots of exposed wood and it is very hard to keep dust free. Once we light the woodstove it seems to really get dusty. The dust does not bother me all the time. Most of the year I am fine. Do you think an air purifier would help? If so, do you know of one that does not cost an arm and a leg that has really worked for someone you know? Do you have any other ideas? Thanks Friends!!!