Lola woke us at 4am scratching. Got up with her and she is covered with hives, her eyes are really swollen, and her face is really red. It's driving her crazy. No new food, and we were home all day yesterday. Seriously there are probably a hundred bumps, some small and some nickel sized on her sides. Gave her two benadryl with no noticeable effect now 2 hours later. Will be taking her to the vet as soon as they open. Does this sound environmental? It happened so suddenly.