Itchy nose, sneezing and runny nose may be caused by allergic rhinitis, upper respiratory tract infection or chronic sinusitis.
1. Allergic rhinitis: chronic inflammation of the nasal mucosa that occurs after an individual is exposed to allergens, with clinical manifestations such as itchy nose, sneezing and watery discharge. Sneezing occurs due to increased sensitivity of sensory nerves, and there may be continuous episodes; parasympathetic activity increases, and glandular secretion is exuberant, causing an increase in nasal discharge. As the nasal mucosa is in a hypersensitive state, hot and cold stimuli can induce rhinitis.
2. Upper respiratory tract infection: common cold is mainly characterized by nasal manifestations as clinical symptoms, such as sneezing, watery runny nose, nasal congestion, etc., which can also be accompanied by dry throat, itchy throat, cough and so on.
3. Chronic sinusitis: its pathogenesis can be related to microbial infections such as bacteria, fungi and other microbial infections, as well as epithelial barrier disruption, allergic reactions or immunodeficiency and other etiological factors, in the onset of the disease, due to the pathological manifestations of inflammatory cell infiltration and other manifestations of nasal congestion, runny nose, sneezing, olfactory dysfunction and other manifestations.
If you have itchy nose, sneezing and runny nose, you can consult a doctor in time to find out the cause of the disease, and then choose the appropriate treatment plan according to the severity of the disease to improve the symptoms.