Itching inside the chest may be caused by bronchitis, and itching in the chest may also occur when a cold or cough occurs. Bronchial tubes are the channels through which air flows into and out of the lungs, and bronchitis can cause the bronchial lining to react with the corresponding inflammation, i.e., inflammation, which can cause certain discomfort, such as feeling itchy, when breathing with the influence of air inhalation and airflow of carbon dioxide discharge. Itchy feeling in the chest is also a sign of cold. When the respiratory tract is infected by bacteria or viruses or attacked by foreign bodies, the movement of cilia will intensify, and the harmful substances in the respiratory tract will be discharged from the body, causing other chest discomfort such as itching in the chest. Coughing, especially for a long time, causes rapid loss of water from the lining of the respiratory tract, resulting in dryness of the respiratory tract, which leads to an itchy feeling in the chest.