Description: Nasal congestion is the blockage of the nasal passages that occurs when the membranes lining the nose swell or inflame. This symptom can be caused by various conditions, such as viral infections, allergies, environmental irritants, or structural problems in the nose. Nasal congestion manifests as difficulty breathing through the nose, which can lead to mouth breathing, thus altering the normal breathing pattern. Additionally, it may be accompanied by other symptoms such as nasal discharge, sneezing, itchy eyes, and headaches. Congestion can be temporary, as in the case of a cold, or chronic, as in allergic rhinitis. Its relevance lies in the fact that it can significantly affect a person’s quality of life, interfering with sleep, concentration, and daily activities. Nasal congestion can also be an indicator of other health conditions, making it an important symptom to consider in medical diagnosis.
