I would involve a professional, someone who understands the breed quite well. If you’re in the US, I would go to the nearest chapter of the breed club: http://www.bordercolliesociety.com/affiliate-clubs/
I would also search Google for “Border collie club $YourState.” They’ll be able to refer you to a GOOD trainer for the breed.
Feed your dog in the crate, to prevent stress at meals. If you don’t have a crate, now’s the time to get one. Step up your obedience training, too – remember, you have THE smartest breed on the planet, and your dog needs a job or she will become a neurotic mess. If you haven’t worked on anything beyond basic obedience, start. BCs need to herd, or they need a sport that fulfills their need to work.
Hello!
Sorry. I was at the clinic until after 9. My advice is to always call the vet as soon as you can if you think that there has been an allergic reaction. Even if you aren’t sure you should check with them ASAP.
As far as tonight’s episode Imis concened I would say that as long as he is otherwise normal I think you are ok to wait through the night until the clinic is open in the morning. If anything else changes like attitude, behavior, or anything out of the ordinary please head to the closest ER. Just to be safe. If you need me you can call.
PS please notify us in the morning as to how he is doing.
Xoxo
Merry Christmas to you all!