Until a week or so ago, I'd never been subject to any sorts of allergies. For some reason, this year my body began to object to all of the trees and grass having sex in my nose, and I've gotten all of the typical symptoms: itchy/watery eyes, runny nose, itchy throat.
At first I only got the symptoms at night, and so I would occasionally take Advil PM, which has more Benadryl than Benadryl does. Downside: drowsy. They're called SleepHammersTM in our house for a reason.
Once the symptoms started affecting me during the day, I decided to give Claritin a try, and it does seem to hold it all at bay, although their "24-hour" claim is nonsense; their 24-hour dose works for about 12 hours for me. Also, even though the symptoms are gone, I can sort of feel them...lurking, just below the surface.