The difference between a dry cough and an irritating cough is that an irritating cough is usually dry, but a dry cough is not necessarily an irritating cough. A dry cough is a cough with no sputum, or very little sputum that is not easily expelled. Dry cough can be caused by many reasons, such as bronchial asthma, allergic cough, tuberculosis and pneumonia. Irritant cough is usually a reflex cough caused by some external physical or chemical factor, such as inhalation of cold air, allergens, or a foreign body pressing on the airways. Irritant cough can be caused by bronchitis, allergic cough, bronchial asthma, foreign bodies in the airways, and pneumonia. So the two, dry cough and irritating cough, are contained and contained. If the patient has a dry cough or irritating cough, it is recommended to consult a doctor as soon as possible to find out the cause, and then according to the cause of the scientific and effective treatment.