Nasal discharge like water may be caused by physiological factors such as cold air irritation or pathological factors such as colds and allergic rhinitis, and the exact cause of the disease should be examined by a specialist in the hospital for a clear diagnosis.
If you are suddenly exposed to cold air or often come into contact with irritating gases, your nasal passages may be irritated and you may experience watery nasal discharge.
If you have recently contracted a cold, due to the infection of bacteria or other pathogens, there will be a large number of inflammatory mediators, if the inflammatory mediators into the nasal cavity, the nasal mucosa is stimulated, resulting in increased secretion, which leads to the phenomenon of watery nose.
If you suffer from allergic rhinitis, the nasal mucosa is stimulated by allergens, causing increased inflammatory secretions, which may be manifested in the phenomenon of watery nose.