Patients with nasal congestion often suffer from inflammatory infectious and allergic diseases of the nasal cavity and sinuses, and mucous or mucopurulent secretions tend to accumulate in the nasal passages, resulting in blockage of nasal breathing and ventilation. In this case, the secretions in the nasal passages can be cleared properly, and if necessary, it is necessary to go to the hospital and use a special tool such as a suction device to do so. The nasal cavity, sinuses, and nasopharyngeal area should be carefully and thoroughly examined, usually by nasal endoscopy and nasal imaging, to further define the degree and type of inflammation in the nose. Further use of hormonal nasal sprays, such as mometasone furoate nasal spray, is often required, as well as oral antibiotics and anti-allergy medications, if necessary.