It is necessary to first determine the cause of the dog's rash before using medication. If it is caused by allergies, desensitizing drugs also need to be used, and the dog must be taken away from the allergen. If your dog is infected with fungi or bacteria, this type of rash will also appear, accompanied by itching and hair loss. It is recommended to use a microscope to examine and then give antibacterial and anti-inflammatory drugs.

Dogs will also have the above symptoms after being infected with parasites. It is recommended to use external anthelmintic drugs.