Warm weather causes trouble for asthma patients

Doctors say the recent spring weather has caused an uptick in emergency room visits for asthma patients because tree pollen and other common allergens have increased in western Connecticut. Doctors say asthma patients can't delay getting medical attention when an attack hits. They say during an asthma attack, the patient's airway goes from the diameter of about a quarter down to the diameter of a straw, so they struggle to get air in and out. At Norwalk-based Allergy Center on Conne...