Why does my dog have spreading scabs on his head, ears, and shoulders?
Poor Wyatt! I'm glad to hear that he's heading to the vet tomorrow. The scabs on his skin could be a result of a bacterial or fungal skin infection (these often occur with underlying allergies), ringworm, or mange. Any of these issues can worsen until necessary medication is started. Allergies can occur to flea bites, food, or environmental sensitivities. Make sure that Wyatt is receiving a high quality flea and tick preventative, such as Nexgard, Bravecto, or K9 Advantix II. Tomorrow, your vet will be able to perform any necessary diagnostic tests, such as a skin cytology (to look for signs of bacterial or yeast overgrowth), skin scrape (to check for mites causing mange), or a fungal culture (to check for ringworm). From there, oral and/or topical medications can be started to help resolve this issue. I hope that all goes well!
Updated on September 23rd, 2025