I gave Autumn a 300mg buffered aspirin last night (I normally give her one when she's in arthritis pain in winter). This morning she looked 75% better. It only treats the symptoms, not the cause of course so she'll still be going to the vet, but at least she can be more comfortable until then. The only vets around here I could get in before Friday are emergency which would be like $500 for such a simple problem, or another local vet I don't really trust.