What is the role of inflammation in allergic reactions?

Mar 26, 2025 ... The primary cause of seasonal allergies is pollen, which is released into the air by trees, grasses and weeds. Pollen levels vary throughout the ... Apr 16, 2014 ... What causes someone to be allergic to seasonal allergens and other irritants is unknown. The key to understanding allergies may lie in genetic ... Learn how your allergies can cause sinus pain and congestion, and what steps you can take to relieve sinus and allergy symptoms. Woman with seasonal allergies ... Allergies. Allergy symptoms range from mild to severe and can occur seasonally or be present year-long. In patients with asthma, allergies can cause a cough ... Mar 6, 2022 ... The increased levels of allergens is causing more and more people to experience seasonal allergies. People may react to one or more pollens, so their pollen allergy season may be from early spring to late fall. Seasonal allergy is also caused by mold spores, ... What causes seasonal allergies? The most common seasonal allergy trigger is pollen. Other causes include: Dust; Trees; Grasses; Weeds; Mold; Dust mites. What ... Mar 3, 2021 ... ... allergies as seasonal, caused by grass, tree and ragweed pollen. Truth is, seasonal allergies can occur nearly year-round as trees release ... Apr 9, 2024 ... Pollen is produced naturally as a means of reproduction for a variety of plants, but human activity — such as creating air pollution, using non- ... Hay fever causes symptoms such as sneezing, a runny nose and watery, itchy eyes. It can be triggered by seasonal allergens like pollen and grass, or year ...