1. Take your dog to the vet. The vet will be able to confirm whether or not your dog has ringworm and prescribe the appropriate treatment.
2. Isolate your dog from other animals and humans. Ringworm is contagious, so it's important to keep your dog away from other animals and humans to prevent the infection from spreading.
3. Clean and disinfect your home. To prevent the infection from spreading, you should clean and disinfect your home, especially any areas where your dog has been.
4. Treat your dog. There are a number of treatments available for ringworm, including topical creams, ointments, and oral medications.
5. Monitor your dog's condition. You should closely monitor your dog's condition and follow the veterinarian's instructions for treatment.
6. Prevent future infections. Ringworm can be treated, but it is important to take steps to prevent future infections. You should regularly clean and disinfect your home, keep your dog away from other infected animals, and keep your dog's vaccinations up to date.