Hi Todd,
Welcome to the Forum :) :) I'm in Germany, but I'm from the Seattle area.... Mossback [$ webbed footed, aren't we? ]) :D
Sorry about your Corgi. They are such sweet dogs. Here are some sites that might help you look for alternate methods of treating her. I hope they help :)
American Academy of Vet. Acupuncture Equine and Canine Massage Check in your phone book for Dr. Pitcairn, DVM. He is a renowned Homeopathic vet who lives/works in the Eugene area. While I don't always agree with his theories on vaccinations, I do like much of his other views.
I know that the Homeopathic medicines do help my dogs out quite a bit. I have a DVM husband/wife team who work together with 'modern' and alternate medicines. She is certified for acupuncture. Both were educated in the US.
So, if you can't locate Dr. Pitcairn or the links don't help, call around locally and ask for a vet who does acupuncture/homeopathy. There's a vet college up in Portland, so they might be able to recomend someone or even offer to look at your dog.
my best wishes and good luck,
toodles