Well you need to dilute the exercise or take break in between exercise, so that it doesn't trigger you allergens.
Azelastine is an Antihistaminic nasal spray that act for short term only. It will be preferable to start Azelastine with Fluticasone nasal spray which will alter your nasal allergic flora and settle the allergen for long time.
This combined spray should be used regularly for long term in tittering dose in order to get relief your symptoms.
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Allergy cure happens by prevention. So things that trigger allergy need to be slowed