MY DOG HAS A SKIN INFECTION, THATS WHAT MY VET SAYS IT IS, WE HAVE HIM ON ANTOBIOTICS AND HE WAS DOING GREAT FOR ABOUT A WEEK. BUT NOW THE RASHES ON HIS STOMACH AND ARMPITS ARE BACK. HES A PITBULL AND HAS SHORT HAIR(WHICH HE WAS ALSO LOSING SOME IN CIRCULAR PATERN)HE DOES NOT ITCH BECAUSE HE NEVER SCRATCHES. I WOULD LIKE TO KNOW IF MAYBE YOU HAD AN IDEA OF WHAT ELSE IT COULD BE FOR I COULD TALK TO MY VET.
Your pet may need to be on antibiotics for a longer period of time. This could also be a fungal infection. I recommend a recheck at your vet. Vetcare