I cannot stop sneezing

I am about to go crazy. I cannot stop sneezing. It's horrible. My whole face feels like it's swelling from all the sneezing pressure. It all started when I woke up around 6:30. I laid in bed sniffling and sneezing. I got up at 7 and took a chlor-trimeton which usually stops my allergies completely in about 30 minutes. Well, here I am, almost 4 hours later and I don't feel like it's done a thing. I just took a Benadryl to see if it will help.

I've gone through almost an entire box of tissues already and I have a very persistent tickle in my nose that makes me sneeze. And I don't just sneeze once, it's about 5 times in a row repeated every couple minutes. Ugh. I'm getting one heck of a stomach workout. Some of these sneezing rampages leave me doubled over. I'm afraid I'm going to pee my pants they're that intense! hahaha

Wish me drugged-up, no-sneeze bliss soon, please!