Allergic rhinitis does not cause dryness in the nasal cavity, but mainly edema of the mucous membrane in the nasal cavity, which can cause recurrent sneezing, profuse clear nasal discharge, nasal congestion, nasal itching or loss of smell. If there is dryness in the nose, it is likely to be caused by the long-term use of nasal vasoconstrictors, because these drugs can cause the glands of the nasal mucosa to atrophy and reduce secretion. First of all, it is necessary to stop using such drugs, and warm saline can be used to rinse the nasal cavity to promote the recovery of nasal mucous membrane function and also facilitate the outflow of secretions. You can use glucocorticoid nasal spray, which is very effective for the treatment of allergic rhinitis because it has good anti-inflammatory and anti-allergic effects, and is directly acting on the mucosal surface, which can also promote the recovery of mucosal function. Physical exercise should be done properly to enhance resistance as well as resistance to disease.