Chica met a muskrat a couple of weeks ago. They had a tussle. The muskrat lost.
However, the next day, I felt something crusty under Chica's chin. I thought it must be muskrat blood - there hadn't been any blood at the scene, just the poor lifeless muskrat body with a hole in it.
I looked under Chica's chin and saw a hole. So yucky! I took her to the vet. They had to put her under, cut it all back, clean it all out and stitch it up (with drain tubes in). She had to wear an e-collar (cone) and be on antibiotics for ten days. I took her back to get her tubes out, then, a few days later, took her to get the stitches out. Unfortunately, they did not put her cone back on and she scratched. It turned out the wound had not healed right through and her scratch tore it all apart. She had to go back into the operating room, get it all cleaned out again and get stitched up again, this time with different stitch material. Ten more days of antibiotics. (She gets the pills in peanut butter and loves her "treat".) She also got a larger cone so that she couldn't rub her chin in the earth which she was always trying to do to get a good scratch.
She went back today to the vet and she decided to give her another week with the stitches in to make sure that she is fully healed. Apparently, the hole in her chin was quite deep.