Why is my dog biting his lower back and tail until it's raw and bald?
Poor Tobias! Thank you for providing pictures of his back. This behavior is commonly caused by flea, and if he isn't up to date on his flea medications, I can give you a flea treatment program for him. First, I would give him Capstar. It's a one time pill that starts killing fleas within 30 minutes. Then follow up with a spot on treatment, such as Advantage or Revolution. This is a treatment that has to be used once a month. You will also have to disinfect the environment. Wash his bedding in hot soapy water, and vacuum the furniture and carpet surfaces. You can use a spray to kill fleas in the house, such as Indorex, or a flea bomb would work well to kill the fleas in the home.
If Tobias is up to date on his flea treatment, then he could be suffering from allergies or mites causing his symptoms and I recommend taking him into the vet for an exam tomorrow. The vet can do blood tests and skin scrapings allergies and mites. Once the cause of the itching is found, the vet can prescribe the appropriate treatment.
Updated on September 23rd, 2025