Winter Still a Time for Allergies
Even though freezing temperatures bring an end to seasonal pollen allergies, millions of people suffer from indoor allergies because of the time spent indoors during cool weather. A home can actually contribute to sickness. Forced-air furnaces circulate airborne dust containing lint, fabric fiber, bacteria, food material and animal dander. "Three of the most common allergens, house dust mites, animal dander and cockroach droppings, are worse in winter when there is less ventilation," says Harold S. Nelson, MD, an allergist at National Jewish.
Some common symptoms of indoor, winter allergies are sneezing, often accompanied by a runny or stuffy nose, coughing and postnasal drip, and itching eyes, nose and throat. Dr. Nelson adds, "Even pets such as lizards can cause allergy symptoms."Animal allergens, attributed to a protein contained in the saliva, dander or urine of animals, are carried through the air, and exist in furniture fabric and carpeting.
These steps may minimize indoor allergen exposer:
- Keep humidity below 40 percent in the home to reduce dust mites and mold.
- Remove wall-to-wall carpet, especially carpet over concrete. (Dampness can accumulate between the concrete and pad/carpet, creating an environment for dust mites and mold).
- Wash bedding in hot water once a week, and encase pillows and mattresses in impermeable covers. Avoid down pillows and comforters.
- Clean regularly and damp mop floors to avoid stirring up dust.
- Minimize contact with pets, especially in bedroom areas.
This information has been approved by Hal Nelson, MD (June 2006).
