One strong perception of allergic rhinitis is that its symptoms worsen during the change of seasons and then decrease in summer. However, the large temperature difference between indoors and outdoors in summer due to excessive operation of air conditioners can dry out the mucous membranes and further weaken the immune system.

Topical decongestant nasal sprays are one of the most popular products sought by customers due to rapid symptom relief. The spray constricts the blood vessels in the nasal mucosa to relieve symptoms of nasal obstruction to offer faster symptom relief than oral formulations and is effective in those who experience severe nasal congestion.

However, people are reluctan