A runny nose is a very common condition and can be caused by a number of factors such as colds, odor irritation, dust mites, etc. Nasal mucus is a physiological and natural secretion of fluid, which is secreted from the mucous membrane of the nasal cavity and the cellular glands under the mucous membrane.
Everyone’s nasal cavity has a mucous membrane, the mucous membrane will continue to secrete mucus, so that the nasal cavity in the inhalation of air can also be kept moist, the mucous membrane will also secrete mucus, this mucus is snot, snot is a body protection screen.
Snot contains an enzyme, this enzyme is conducive to dissolve bacteria in the air, can protect the nasal cavity, so as to avoid the dust and bacteria in the air is inhaled, stimulate the nasal cavity, causing infection.
In daily life, when a runny nose occurs, do not pinch it hard to avoid damaging the mucous membrane. If the situation of runny nose caused by colds and other diseases is serious, you should consult a doctor in time and follow the doctor’s instructions for treatment.