Do you find the allergies effect you only certain times of the year or does it have a daily effect on you because you are breathing all those fine particles?
Typically they start getting to me around late June early July, and only on hotter days (80's-90's) but in my area we didn't have much of a winter so like workformyself said the pollen season started early. On a good note since Ive started taken this Allegra my symptoms have drastically reduced there's only be a couple yards that have caused me to start sneezing and stuff but it only lasts for about ten minutes or so after i leave.
Can you also look up on the weather channel to see your local areas pollen advisories? Maybe knowing when pollen is high, you could wear a mask. But if the allergy is coming from all the fine particles you are cutting into the air, maybe the mask would help.