There are several ways to prevent swimming nose allergy: 1, you can wear a formal nose clip when swimming, but this requires patients to be very skilled when swimming, and to be able to breathe skillfully in the process of swimming, if not skilled, it is also easy to choke and other risks may occur. The nasal clip can prevent the swimming water from entering the nasal cavity, thus inducing the possibility of allergies. 2. After the patient has finished swimming, he should immediately use saline to do nasal rinse treatment, which can rinse away the residual swimming water in the nasal cavity and reduce the presence of allergens in the nasal cavity, thus also reducing the onset of allergic rhinitis. Doing the above preventive measures can reduce the appearance of allergic rhinitis to a certain extent, but if it occurs clinically you can also apply nasal spray hormone, if necessary oral anti-allergy drugs for symptomatic treatment, but it is recommended that patients try not to swim during the acute attack of allergic rhinitis.