Winter Pollen AllergiesMountain cedar is a type of juniper tree found mainly in South and Central Texas that pollinates in the winter, from December through March. In the areas where it grows, it is usually the only major pollen present during the wintertime. Mountain cedar is a major cause of hay fever, and people who suffer from this form of pollen allergy typically refer to it as “cedar fever.”
Learn more about mountain cedar allergy.
Runny Noses in Cold WeatherAs the weather starts to turn cold and crisp around the country, people are packing their pockets with tissues to combat their runny noses. But this usually isn't due to allergies -- rather, it's caused by vasomotor rhinitis. This non-allergic form of rhinitis may result in a runny nose, post-nasal drip and/or nasal congestion. It is caused by a number of triggers, including temperature changes, windy weather, and changes in humidity, as well as strong odors, perfumes and smoke.
Learn more about the causes and treatment of a runny nose in cold weather.
Mold Allergies in the WinterAirborne molds are well-known causes of allergic rhinitis and asthma symptoms, and can be present outdoors and indoors. In colder climates, molds can be found in the outdoor air starting in the late winter to early spring, especially during the rainy season. While indoor molds can occur year round and are dependent on moisture levels in the home, indoor mold levels are higher when outdoor mold levels are higher. Therefore, a common source of indoor mold is from the outside environment, although can also be from indoor mold contamination.
Learn more about mold allergy.
Christmas Tree AllergiesThink your allergies and asthma get worse once you bring that fresh pine tree indoors during the holidays? It may be more than just your imagination. For years, people have suspected that along with that fresh pine scent, a freshly cut Christmas tree worsened allergy symptoms -- but the reason hasn't been completely clear. Possibilities include pollen, mold spores and strong odors emitted from the tree.
Learn more about why indoor Christmas trees worsen allergy symptoms.
Hives in the ColdCold urticaria is a form of physical urticaria that is characterized by the development of hives and swelling with cold exposure. A variety of cold triggers can cause symptoms in people with this syndrome, including cold weather, cold food and drinks, and swimming in cold water.
Learn more about the causes and types of cold urticaria, as well as the treatments available.
DISCLAIMER: The information contained in this site is for educational purposes only, and should not be used as a substitute for personal care by a licensed physician. Please see your physician for diagnosis and treatment of any concerning symptoms or medical condition.