Depending on the location of the
swellingAbdomen - swollen
Ankle sprain swelling
Breast - premenstrual tenderness and swelling
Foot swelling
Foot, leg, and ankle swelling
Gums - swollen
Joint swelling
Mastoiditis - redness and swelling behind ear
Scrotal swelling
Swelling it is most likely an abscessed tooth. She likely needs a dental with mouth xrays and extractions ASAP. She will still be able to eat fine without teeth - so she's much better off without a tooth than a painful tooth.
My dachshund has need teeth extractions, too. She'll act so much more like a puppy even at her age, after the mouth has healed up.
Don't be afraid to have her lose teeth. ie if the veterinarian recommends extractions - the chance of saving that tooth by the time they say that is less than 10% in most cases. It's really better to extract borderline teeth than try to save them, as it will just spread damage to rest of the body.
Pets with good dental health live an average of 2 yrs longer than pets that don't.
Bacteria in the gum line and in tartar shower daily to other organs. Since the kidneys and the heart get the most blood, they are most likely to be come damaged. Bacteria set up infections on the heart valves causing murmurs and eventually congestive heart failure. ie reason for pets with poor teeth often getting heart problems. The kidneys are just big filters. They filter out the waste. Bacteria get trapped in the filters that are the kidneys and the body reacts to them setting up tiny infections that get healed by scar tissue. How well does a filter work that is blocked by scar tissue? Easy to see why kidney problems are another common result of teeth problems. It does take 70% damage to both kidneys to show up as a problem on bloodwork, though.
Help your little girl out by cleaning up that mouth and having it regularly cleaned.
Thanks for asking!
Dr. Jen