Treating ringworm on a dog, which is not a worm at all, requires a DTMF or fungal culture at the veterinary office, followed by an anti-fungal treatment and …
source
Dog Health Treatment & Advice : How to Treat Ringworm on a Dog

Treating ringworm on a dog, which is not a worm at all, requires a DTMF or fungal culture at the veterinary office, followed by an anti-fungal treatment and …
source