By Dorothy Pardalis, BSc.Phm, CDE

 Winter has officially arrived and with that brings the start of the dreaded cold season. For those who have asthma, colds can cause their asthma symptoms to worsen. A person with asthma has red, swollen lungs that are sensitive and become "twitchy". These "twitchy", swollen lungs can lead to symptoms such as cough, shortness of breath, wheezing and chest tightness. Viral infections such as colds, cold air, cigarette smoke, high humidity and various allergies (e.g. pets, dust, foods) can cause asthma to worsen. We refer to these as "triggers" and every person…