80% of those with asthma will also be affected by the allergic reaction.
One in five people in Ireland suffer from Hayfever.
Research from the Asthma Society of Ireland also found nearly 80 percent of those with asthma will also be affected by the allergic reaction.
Common causes of hayfever include excessive pollen from flowers, trees, grass, as well as fungi spores.
Pharamacist Laura Dowling says it can be triggered any time of the year:

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