Pollen allergies occur when the body's immune system reacts to pollen from trees, grasses, and weeds.
It causes symptoms like sneezing, runny nose, itchy eyes, and congestion.
In Herning, Denmark, pollen seasons vary by type.
Tree pollen season starts in March and lasts until May.
Grass pollen season starts in June and lasts until July.
Weeds produce pollen from July to September.
Higher temperatures and wind speed increase pollen counts.
Pollen counts are usually highest on warm, sunny days.
Rain and cooler temperatures reduce pollen counts.
When pollen counts are high, we suggest doing these things to help with allergies, especially on windy days when pollen is flying around.