I am not sure what Rimadyl is, but I guess it it a form of a antihistamine. Benadryl would have been better, but don't give it to her now. She might have gotten bit by an insect or she is allergic to something. Next time try to give her Benadryl.
My Dog Has A Noticeable Swelling Under One Eye. I Just Noticed It Today. I Gave Her A Rimadyl 1 Hour Ago But I See From Other Postings Here That Benadryl Is Probably The Right Medication To Give. Is It Bad If I Give Her A Benadryl Now?