Make some tea (2 tea bags let it sit in water for 10 to 15 minutes) with lemon juice (2 teaspoons) and honey (2 teaspoons). Use local honey if you can get it. Drink it about 1/2 hour after each meal.

Also make sure your central air filter is changed every month. When you come back in from outside wash your face to get the pollen off your face. Another idea is to use a medical mask when going outside.

My main problem is the oak pollen, which peaked a week or so ago, so mine is getting better.

During the season I take a Zyrtec in the morning. On the worst days I do Flonase in the evening as well.

Apple cider vinegar, local honey, probiotics, green tea ( abundant in EGCG), Quercetin  (flavonoid that acts as a natural antihistamine that you an find in apples (w/skins), onions, grapes, dark berries, green, leafy veggies, parsley, olive oil and bee pollen).  So eat plenty of these foods or find a  supplement and a nasal rinse with a neti pot with a solution of water and saline.  

I try to stay away from any kind of medications.

I only take it in the spring and it takes care of the itchy face and eyes. It can make you lose sleep the first few days. Also have to get it from the pharmacist  and show I'd because of methheads.

Somebody mentioned local honey, that's a very strong idea. You have to take a few teaspoons every day, and it takes a few weeks to work. So it probably won't help too much dealing with your current attacks, but it will definitely cut down on the number and severity of them in the future.