Seasonal Allergies: Understanding Your Body’s Reaction to Pollen
The New York Times • • health
Key Points:
- Seasonal allergies occur when the immune system mistakenly identifies pollen from trees, grass, or weeds as a harmful invader, leading to an inflammatory response.
- Sensitization happens when the immune system learns to recognize pollen as a threat, producing antibodies that trigger allergic reactions upon subsequent exposures.
- Allergy symptoms such as watery eyes, runny nose, and congestion result from the release of histamine and other inflammatory chemicals, which cause blood vessels to leak and tissues to swell.
- Treatments like antihistamines, steroid nasal sprays, and saline rinses can help manage symptoms by blocking histamine effects, reducing inflammation, or flushing out irritants.
- Different pollen types dominate in spring, summer, and fall, so allergy sufferers may experience relief or new symptoms as seasons change, but effective treatments are available to mitigate discomfort.
