Pollen allergy often starts exactly when spring would otherwise be inviting people outdoors. The season varies by plant, weather and region, so a pollen calendar is a guide, not a clock.
Typical season pattern in Finland#
Alder often appears first, sometimes already near the end of winter. Birch is usually the hardest phase for many people. Later in the season, grass pollen becomes more important, and mugwort can trigger symptoms in late summer.
How to follow the season#
The most practical habit is to check pollen information regularly when symptoms start. Weather matters too. Wind can lift pollen into the air, while rain often lowers the amount temporarily.
Start treatment before the peak#
Many people do better when treatment starts before the pollen peak rather than after symptoms are already strong. That often means a nasal spray started in advance and an antihistamine kept ready for itching and sneezing.
Everyday ways to make things easier#
During high pollen days, keep windows closed at the worst times, shower after being outside, and wash hair before bed if pollen has been high. Sunglasses can help protect the eyes more than people expect.
When to seek care#
Seek care if symptoms are not controlled with self-care and daily life or sleep is clearly affected. Seek care sooner if you get shortness of breath, wheezing, repeated coughing or a strong reaction to food during the pollen season.
Further reading and sources#
Further reading: