Asthma is a chronic inflammatory disease of the airways that causes wheezing, coughing, chest tightness and shortness of breath. Triggers include air pollution, animal fur, exercise and weather changes. Symptoms are coughing, wheezing, chest tightness and difficulty breathing. Medications include long-term controllers to manage symptoms, quick relievers for attacks, and allergy medications. Treatment involves calming the patient, assisting with inhalers or nebulizers, and monitoring for side effects like increased heart rate or nausea.