Summer is over and autumn is here, good news for most with hay fever, although the season brings its own allergens.

While summer is the height of hay fever season, with tree and grass pollens soaring, autumn brings a boost to pollen from weeds and a spread of spores.

Spores come from mould, which grows quickly in the wet and mild weather conditions typically found this season.

This mould is often found in soil and fallen, decomposing leaves and vegetables.

Weeds also thrive in autumn, in particular the likes of mugwort, nettles, and ragweed. All of which produce pollen and can persist until November.