Yah you are probably talking about an infection brought on allergies. Yeh, I've had those too. Sinus infections, ear infections and bronchial infections. Get this one, since I was a kid, every xmas I would be sick with an infection (see above). Fifty years later I find out it's because of the MOLD spores on the Christmas tree. Now days I spray it down before bringing in the house. Much more pleasant christmases these days.