Sinus Allergy Relief Top-Quality Supplements for Sinus Allergy Management Sinus allergy is a term often used to describe allergic rhinitis or hay fever and is an immune reaction characterized by inflammatory cells within the nasal mucosa and submucosa. Sinus allergies can be triggered by various allergens, including dust, pollen, smoke, animal dander, mould, and chemicals like perfumes and fragrances. The symptoms of sinus allergies typically resemble those you’d experience when you have a cold, such as sneezing, itchiness and a blocked or runny nose. https://www.nationalnutrition.ca/allergy-relief/sinus-allergy.html #SinusAllergies