I’m sorry to hear that Gingerbread is going through this.Its stressful when your pet is ill and the is high price for diagnoses and for treatments. I’m not sure where you live but if there is a rabbit savvy vet that is near I would take your Gingerbread there. The Emergency vet is always more expensive.
Abscesses teeth can cause a runny eye and nose and congestion. Dental disease is a caused by a bacterial infection that has enter into the gums and it can spread into other areas. So that tooth that is abscessed would have to be removed. And it can get really pricey trying to treat it and more abscesses can form in other areas for various reason.
I would try to find another rabbit savvy vet. That whole visit sounds very expensive and for the cost of CT. A CT has costs me around $150. The visit to the vet costs me $75. Blood work has cost me $150. Medication can be very expensive, most I’ve spent is like $50 – $100. I found going to a pet medical dispensary with my prescription did keep my cost lower on medication, that is if your vet is willing to give you the prescription to take it to them.
I’m really sorry that both of you are going through this experience.If I had a magic wand I would wave it, so the two of you wouldn’t be going through this. But with others knowing where you live, they maybe able to find a rabbit savvy vet that is closer to you.