Irritation and inflammation (acute or chronic) of mucous membranes of the nasal cavity. Rhinitis may be allergic or not.
If inflammation persists for more than 12 weeks, it is chronic rhinitis (as opposed to acute). When chronic, they strongly affect the quality of life of people who are victims.
In practice, the simple use of nasal dilator RespiFacile can breathe through your nose and make mucositis.
Rhinitis is always accompanied by sinusitis. This is why WHO has updated its classification and now speaks of rhinosinusitis.