Sorry to hear that. Generally you can try Benedryl, Claritin or Claritin D, or Allegra, these are generic medicines you can get in CVS.
There is no perfect cure of allergy and each person reacts with medicine differently. Give those a try and see which one works better. Try to wash your face and hair often as they can easily collect pollens that irritate your nasal system.
Hang in there!