That's what laid me low! Pine tree pollen! We have several around my apartment, and you can see the pollen in the air! All our cars are covered. I try to cover my nose and mouth whenever I have to go outside, but don't always remember. I've been on antibiotics off and on since Jan. Don't know what did it in Dec., but I was sick all through Christmas. The best thing for the symptoms is Coricidin. OTC.My insurance wont pay for anything that will help!