Could it be food? I've had lots of coconut oil today (she is nearly EBF still). I've also been giving her a little spirulina the last few days. She had some a few hours prior to her itch attack. I'd given her some a couple months ago and she was fine, then started again maybe 3 days ago. My sister was also over all afternoon with her dog, but she never seemed to have problems with the dog before.
It's such a mystery! She'd been doing so good and then all of a sudden, soon as Dh comes home, this happens. Could it be that she reacted to something on dh, but what would be different? Or Could her itching just be a coincidence of him coming home and related to something from earlier? Such a mystery.