A dry cough is a persistent, irritating cough that doesn’t produce mucus and can result from allergies, viral infections, asthma, GERD, or environmental irritants like smoke and dust. It often worsens at night and may cause throat discomfort or chest pain. While home remedies like steam inhalation, warm fluids, and humidifiers can offer relief, a prolonged cough may indicate an underlying condition that needs medical attention. 

https://medicasapp.com/blogs/dry-cough-causes-symptoms-treatment/