Well, it sounds like you've got it pretty much under control (or as much as you can with this, since it's so hard to cure).

And yes, you can give the benadryl 2-3 times a day like a human. We give some to Cocoa sometimes for her allergies, and she likes taking the liquid kind, but I'm sure the pills work just as well. Good luck, I hope Nicki feels better this year!