Areas of heavy vegetation can be avoided, etc. I'll bet that if you have the red, itchy, tearing eyes of allergy, and that if you rub them, you'll notice how much more they itch. Your rubbing helps the insulting pollen inflame the eyes all the more. There are several new prescription eye drops that are very helpful. People who wear contact lenses can even use them.
Pollen counts are highest in the early morning hours.
During the heat of the day, warm air carries pollen upward, like a hot air balloon. Sleeping with open windows lets the pollen in and troubles become worse. Open car windows let pollen in. The air-conditioned air is better. And, of course, if you are still a cigarette smoker, don't smoke in the car.