red rash

Hey guys, I noticed a red bump around my hedgehog's mouth last week. We went to the vet, but she didn't seem to know exactly what it is, so she gave a cream maybe it dissapears. After almost a week, I don't see any improvment. did any of you had the same problem? I don't really know what to do...

Hi. My little hedgie, Bilbo, has a red, rash-like area on his snout underneath his nose. I just noticed it today. There didn't appear to be anything else unusual on his skin and his behaviors is completely normal. Anyone have any idea what this could be from? Thank you so much for your help :)