K.H.
I'm 8 months pregnant and was just as miserable. Go back to your air conditioning, it will keep the allergens out and buy a cold air vaporizor. This machine is wonderful! I can really tell the difference when I sleep with it blowing in my face and when I don't. Add to that the Allergy & Sinus saline spray and you should be breathing easier. The regular saline spray does work for moisterizing, but the Allergy & Sinus has a higher salt content.
Good luck!