Too much dust inhalation may cause a cough. Coughing is a protective respiratory defense reflex. Inhaling too much dust itself can cause the body to cough as a defense response to clean up some of the inhaled dust by coughing up phlegm. In addition, some people are allergic to the substances contained in the inhaled dust, such as dust mites, the allergic reaction will cause respiratory mucous membrane edema and cause coughing, or even chest tightness, dyspnea and so on. Dust inhalation not only causes coughing symptoms, but the irritation caused by dust to the respiratory system often brings other discomforts, such as pharyngeal discomfort. Therefore, individuals should pay attention to the protection, if the cough persists unrelieved, even with chest tightness, dyspnea and other symptoms, you need to consult a doctor in a timely manner, and follow the doctor’s instructions for medication.