Hello. I am sorry to hear about Susie Q. This is a serious concern. I will wait for you to reply so we can discuss.
she is an old dog
Okay. 105.0. That is substantially above most vets cut-off of 103.0. There is no dobut she is febrile and there is something systemic (internal) making her sick.
Unfortunately, this is well beyond at home care. In fact, it would be negligent on my part to even suggest at home treatments. It is critical she gets into a vet for some supportive care, which would likely include some form of fluid therapy, anti-inflammatory medication, and perhaps, a test or two.
For now, this is what we call a FUO. Fever of Unknown Origin:
This is a great link as well:
sorry i lost my connection at the time.
thanks for your help. Will try to get her into the vet as soon as I can