Hi Newbie,
I'm new here too, but one thing that comes to mind besides the chemicals in the humidifier is the possibility of mold in your home from having a humidifier running all the time. Mold is a pretty common tic trigger from what I've read. We actually have a de-humidifier running a lot of the time and it pulls about 2 liters of water out of our air every day. Since we started using it, there's no more mold growing in the corners of our windows. It's something to think about.
Susie
Thanks Susie,
I don't have any visible mold but this is a very good point I can bring to my husband.