M A, I am also in the (Deep?) South of GA and we have pollen galore… I think it bothers me more than it does my little guy Bruno, but he has started sneezing a bit more these days. He seems to be fine otherwise and the sneezes expel whatever is in his nostrils, so that is good. If he had a similar problem to your beagle, I would probably wash/wipe his face, focusing on the eyes and nose, and wiping the nose may make him sneeze, so that may help expel some more stuff that is inside the nose. By “expel” I don’t mean that mucus comes out, never has with Bruno, just that the force of the sneeze may move the agitating particles out.
I don’t know about the saline solutions and hopefully someone else would chime in on that, but I would try with just water for face (eyes and nose) wiping for a few days (the more natural, the better for me), and then see about the saline and the Benadryl if there is no improvement.
