“Two-thirds of allergy sufferers have symptoms year-round, so it’s not just a matter of the first freeze hitting and your symptoms disappearing,” Dr. Bryan Martin, president of the American College of Allergy, Asthma, and Immunology (ACAAI), said in a college news release.
“Even after the pollen season dies down, there are environmental triggers to deal with — things like mold, dust and pet dander. The winter holidays can bring a whole new set of triggers,” he explained.
For example, very cold, dry air can trigger asthma, experts warn. When going outside in the very cold weather, people with asthma should cover their mouth and nose with a scarf or face mask, especially if they’re exercising.