Terrible, isn't it? I had such bad hayfever this year I was incapacitated for two weeks: achy, massive headaches, and of course, the itchy eyes, alternatively stuffy and runny nose, and itchy mouth and ears. It was so bad I was sleeping all the time. I thought it was baby, but my doctor said it was more likely hayfever, which can cause insane fatigue.
Now to shut up and answer your question, I was advised to take nothing for allergies, but I did take Tyenol for the pain, which my doc said was cool. (My sinus infection got so bad I lost my sense of smell for a month, even after the hayfever was gone!) I also used a saline rinse.
Of course, whatever your doctor says is fine, I'm sure. Good luck!