Cass, I am not 100% certain, but I think Dylan is protected if he has had his required vaccinations. Tetanus is one of those mandatory ones and it lasts for a long time. You may be required to have a tetanus shot if you haven't had one in the last 10 years or so. I remember having to have one when our cat, Tigger, climbed me and scratched my face, horribly, many years ago.

Don't panic. Sometimes jaw problems are related to something simple. I just hope you get some answers. If you could go to a doctor, rather than the emergency room, I think that would be better, so you could make repeat visits, if necessary. In fact, I would start with a dentist, rather than a medical doctor.

Hang in there, and keep us posted.

Logan