Pollen allergies, also known as hay fever, cause symptoms like sneezing, runny nose, and itchy eyes. They occur when plants release pollen into the air.
In Leiria, Portugal, pollen season starts in February with trees like oak and birch releasing pollen. Grasses and weeds pollinate from May to July.
Pollen counts are highest on warm, sunny days with low humidity. They are usually lowest on cool, rainy days. Pollen travels far on windy days.
To minimize symptoms, stay indoors on high-pollen days, keep windows closed, and use air conditioning. Wear a mask when outdoors, and shower after being outside.
When pollen counts are high, we suggest doing these things to help with allergies, especially on windy days when pollen is flying around.