We believe this is a bite of some and kind didn’t want to take her to the vet because they always want your money. We have had terrible experiences, so the vet is our last resort. I applied your skin soother for a few days and it cleared it up! Annie has a lot of skin problems and we are fighting one by one until they all are gone. She had two of these exact “bites” of some sort on her back, this picture is from the same place.