Please help. Been to the vet but he doesn’t have experience. I took this cat from a breeder that was selling her cats. Only had her for a couple of weeks. When I took her sweater off to bath her I found this marks, I though it was dirt but after the bath they didn’t come off. The breeder mentioned it’s food allergies but an allergic reaction normally are hives? Also it’s not bothering her, she is not scratching.Vet thinks maybe skin infection and we did send a sample to the lab. Has anyone seen this? They appeared pretty overnight