But you wouldn't want me to bring him unisom. Then again, it would likely work, just make him sleepy too, which of course the benadryl would do. Also, it's possible that other medicines with diphenhydramine, may also have another active ingredient that you don't want. But I know what you're saying and agree otherwise.
Rick's wife had some spray when I was visiting them, The forehead sting I got hurt like hell! But she sprayed this crap, I wiped it in a tad, and within seconds the pain was gone and the swelling going down already. Good product, whatever it was!