Every time you breathe in, air enters your nose and mouth. It flows down your throat and into a series of air passageways called bronchial tubes. Those tubes need to be open for the air to reach your lungs, where the oxygen is passed into the blood to be transported to your body's tissues.
If the airways are inflamed, air has more difficulty getting to your lungs. With less air getting in, you can feel short of breath. You may wheeze and cough in an attempt to draw in more oxygen through tightened...
American Academy of Allergy Asthma & Immunology: "What is an Allergy/Asthma Specialist?" American Academy of Family Physicians: "Asthma: Questions to Ask When It Doesn’t Get Better?" Merck Source: "Questions to Ask Your Doctor."