Spring is often welcomed as a relief from winter, bringing longer days and milder weather. Yet for many drivers, it also marks the start of allergy season. Pollen may seem like a minor inconvenience, but its effects on driving are frequently underestimated and can pose genuine safety risks.
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How Allergies Affect Driving
Seasonal allergies can impair driving in several ways. Sneezing fits, itchy eyes, nasal congestion, and watery vision all reduce the ability to focus on the road. A sneeze at speed can momentarily take a driver’s eyes off the road for several seconds — long enough to miss a hazard entirely.
Fatigue is another common effect. Allergic reactions place strain on the body, often leading to tiredness and slower reaction times, even when symptoms appear mild.
Vision and Concentration Suffer
Irritated eyes can blur vision, particularly in bright sunlight. Drivers may rub their eyes, squint, or struggle to maintain clear focus. Combined with glare from spring sunshine, this creates a dangerous mix.
Concentration also suffers when the body is constantly reacting to allergens. Divided attention reduces hazard perception and decision-making quality.
Pollen Inside the Vehicle
Pollen does not stay outside. It enters vehicles through ventilation systems, open windows, and on clothing. Once inside, it can accumulate on surfaces and continue to trigger symptoms throughout the journey.
Regular cleaning of cabin filters and interior surfaces helps reduce exposure. Using air conditioning rather than open windows can also limit pollen intake.
Know When You Are Not at Your Best
One of the biggest risks with allergies is underestimation. Many drivers continue as normal, unaware that their performance is compromised. Recognising when symptoms are affecting alertness or vision is essential.
If symptoms are severe, delaying a journey or asking someone else to drive may be the safest option.
Preparation Reduces Risk
Simple steps can make a significant difference:
- check pollen forecasts before longer journeys,
- keep tissues accessible,
- clean windscreens inside and out,
- ensure cabin filters are maintained,
- take breaks if symptoms worsen.
Seasonal Awareness Matters
Pollen is a natural part of spring, but its effects on driving are not harmless. Awareness, preparation, and honest self-assessment help ensure that seasonal changes do not quietly increase risk on the road.

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