What causes a tickle in the chest that provokes a persistent dry cough?
1. Introduction A tickle in the chest that provokes a persistent dry cough is most often caused by upper airway cough syndrome, asthma, or gastroesophageal reflux disease. When chemical irritants or inflammatory fluids stimulate the sensitive nerve endings in the respiratory tract, the brain initiates a forceful cough reflex to clear the perceived obstruction. This … Read more