There are three sources of pollen and people can be allergic to one or all of the following:

Grass pollen €“ released during the end of spring and beginning of summer (May to July) and approximately 90 per cent of people suffer from some type of allergy.

Tree pollen €“ released in the springtime (February to June) and approximately 25 per cent of people are allergic 

Weed pollen €“ released between early spring and late autumn (April to September).

Most people are aware of the pollen count and that if pollen is high then symptoms are likely to be worse.

The pollen forecasts are given as low, moderate, high and very high during the weather forecasts in spring and summer. Symptoms usually start when the pollen count hits moderate.