Clean furnace filters thoroughly or invest in a central cleaning system that works continuously to reduce dust. As the cold weather approaches and furnaces are turned on, use a humidifier to add moisture to dry air. Also, put a bowl of water in bedrooms near a heating duct to add a small amount of moisture to the air. Remember to change the water daily to prevent molds from growing. At school, children with allergic problems may need to sit away from the chalkboard to avoid irritation from chalk dust Wash beddings, including mattress and box spring covers and pillow cases in boiling water to kill dust mites.
Asthma attacks can last a few minutes or a few days.
The attacks can be mild or life-threatening. Allergens most often trigger asthma symptoms by entering the lungs as you breath. Other times allergens are swallowed or taken by mouth. Non- allergic triggers have nothing to do with allergies, but they cause the same reaction. My husband is very active, despite the fact that he has asthma.