Coughing on inhalation may be associated with irritating gases, respiratory infections, and airway hyperreactivity. 1. Irritating gases, the more common cause, including oil smoke, automobile exhaust, dust, etc., can form an irritation to the trachea and bronchial tubes, resulting in an irritating cough. It is a normal physiological phenomenon and can be cured after staying away from the polluted air. 2. Respiratory tract infections, including upper respiratory tract infections and lower respiratory tract infections, due to bacterial or viral infections and other pathogens, can damage the mucous membrane of the trachea, which may cause irritation of the damaged mucous membrane during inhalation, leading to coughing symptoms. 3. Airway hyperresponsiveness, due to underlying diseases such as asthma, there may be airway hyperresponsiveness, resulting in a hypersensitive state of the airways, which can lead to inspiratory coughing symptoms. Inhalation cough may also be related to other diseases, it is recommended to consult a doctor to clarify the cause of the disease, and follow the doctor’s instructions for treatment.