Why does it clear your nose when it is cold?

Because cold, hot and spicy food irritates your nasal mucosa, the sensitivity of different nasal mucosa is different, and a few people will have a runny nose because of the stimulation of cold air. If a small amount of cold air and irritating food can cause involuntary runny nose, it is a mild nasopharyngeal symptom. It is suggested to go to the hospital for consultation and treatment, and strengthen physical exercise, especially aerobic training, cold water washing and cold bathing. , can enhance resistance and reduce the sensitivity of nasal mucosa.

Because the face is hot, the capillaries in the nasal cavity dilate, the gap in the blood vessel wall becomes larger, colloid and water leak out from it, and then the nose runs.

It is normal. A lot of people do. . .