My dog has no fleas but developed itchy, crusted scabs all over after a bath — how should I treat a suspected fungal infection?

Skin conditions in dogs can be caused by many different factors, and the treatment varies depending on the underlying cause. You cannot determine the cause just by looking at the skin, so it is best to take your dog to a veterinary clinic for a skin scraping test to identify the specific type of infection and decide on the right treatment plan. For a widespread skin infection, treatment typically involves injectable medication, medicated baths, and similar approaches, with the medication chosen according to the diagnosed cause.