Trail running exposes you to continual dust and pollens that spike up allergy symptoms. Sure, you can take an allergy medicine daily to decrease these symptoms. The problem with anti-hestimines are they make you drowsy and dehydrate you. As your heart is pumping hard and your lungs are breathing heavy, the less chemicals you need to put into your body the better!
I was just prescribed these allergy eye drops, "Pataday", from my optometrist. It does require a prescription and won't plug that runny nose, but it will relieve those itchy dry eyes.
