The vet says since she's finally eating now and didn't drop any weight, and since her lungs are still clear that she's healing on her own and no medicine is needed. But no interaction with other dogs for two weeks! (to make sure she's no longer contagious)

As for the lump, the vet said it was a tumor, probably not cancerous, but if it grows any that we will remove it.

So, it looks like Muffin is slowly on the mend. Nature is running its course and she should be good in no time. She also got her rabies shot today, so no more white coat visits for a while!