See a veterinarian for confirmation of the diagnosis
Isolate the dog from other pets and people
Wash hands after handling the dog
Wear gloves when treating affected areas
Clip hair around the infected areas if advised by a vet
Clean the skin with a veterinarian-recommended antifungal shampoo
Apply prescribed topical antifungal medication
Give prescribed oral antifungal medication if needed
Treat all affected pets in the household
Wash bedding, blankets, collars, and grooming tools in hot water
Disinfect the home, crates, and surfaces regularly
Vacuum carpets, furniture, and floors frequently
Continue treatment for the full prescribed duration
Return to the vet for follow-up testing if recommended
Prevent contact with infected animals until cleared by the vet