Hayfever sufferers have been warned to stay safe after a high level of pollen has been detected across Ireland.
Hayfever is a common allergic reaction to pollen from grass, trees, and weeds, typically occurring in spring and summer when the pollen count is highest. It is caused when the body produces antibodies to pollen, dust, or mold.
The most common allergen is grass pollen, which usually peaks in the first two weeks of June. However, tree and weed pollen and indoor allergens like dust mites, pets, and mould also contribute.