Why does my nose feel uncomfortable when there is cold air?

The nose not only functions as a "dust screen" to filter dust in the air, but also regulates temperature and humidity. In cold weather, when the weather is cold and dry, the nose will accelerate blood flow and increase secretion. The air inhaled into the human body is absorbed into the body through the warmth and moisture of the nasal cavity to prevent the cold air from harming the trachea. Therefore, the body has particularly high demands on the nose in cold weather. The nose Sensitivity is particularly prone to attacks. When you get up in the morning, your body changes from a static state to an active state, and various organs gradually wake up, which increases the demand for nasal function, so it is also the peak time for nasal sensitivity. In addition, the environment changes. In winter, when walking from a heated room to the outdoors, or from the outdoors back to the room, the temperature and humidity change rapidly.

The nose needs to change accordingly, so the nose will take the opportunity to get into trouble again.

Therefore, cold air will irritate the nasal mucosa, so the nose will feel uncomfortable when there is cold air.