The best way to deal with allergies is to identify the source and avoid it where possible. This is quite difficult with airborne pollen, but there are things that sufferers can do to limit their exposure:
Keep windows and doors closed, particularly in the early evening when the pollen count is high
Check the pollen count daily and stay indoors when it is high
Avoid cutting the grass
Wear wrap-around sunglasses
Apply a nasal barrier spray (e.g. Becodefence) to line the nasal passages, or a nasal barrier balm (e.g. HayMax) or petroleum jelly to help prevent pollen from entering the nose.
