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Seasonal allergies
What seasonal allergies are, common triggers, and everyday ways people manage symptoms.
Overview
Seasonal allergies happen when the immune system reacts to airborne substances such as tree, grass or weed pollen. Symptoms often come and go with the seasons.
Symptoms
- Sneezing and a runny or stuffy nose
- Itchy, watery eyes
- Itchy throat or ears
- Tiredness from poor sleep
Self-care
- Check local pollen forecasts and limit time outdoors on high-count days
- Keep windows closed during peak season
- Shower and change clothes after time outside
- Ask a pharmacist about over-the-counter options
When to see a doctor
Talk with a health care professional if symptoms interfere with sleep or daily activities, last for months, or come with wheezing or shortness of breath.
Last reviewed: September 12, 2026