Other Causes. If your puppy or dog has not been properly vaccinated and begins to shiver, cough, run a fever or discharge mucus from his eyes and nose he may have distemper, a virus common in puppies and adolescent dogs.
Heel Injuries. One of the most common foot problems seen by physicians is heel pain. One of the most common problems seen by physicians who care for the feet involves pain in the heel. Heel or arch pain that occurs in adult patients is most commonly caused by a condition known as plantar fasciitis.
Visit a foot doctor (podiatrist). Ingrown toenails that become infected should not be treated at home, which is true for most infected wounds. Visit a podiatrist, more commonly known as a foot doctor, to get treatment for your infection. If the infection and nail are bad enough, minor surgery may be required.