An allergy or allergy can lead to a chronic cough called an allergic cough. If you are sensitive to certain substances, you may cough constantly. People who are sensitive to dust, pet dander, plant pollen, mold, or other common allergens are more likely to have a cough due to allergies. Allergic reactions cause itchy throat and cough by… Continue reading What is an allergic cough and how is it different from asthma, colds and coronary heart disease?