Nope. You know that erectile tissue? Well, it's not just in the penis, it's also in the nose as well. Hence the stuffy nose. It's not allergies, it's the sa

Nope. You know that erectile tissue? Well, it's not just in the penis, it's also in the nose as well. Hence the stuffy nose. It's not allergies, it's the same sort of tissue having the same response. That "pump" in your nose you may feel just prior to a good sneeze? That's those tissues swelling with blood.