Many canine warts do not need any treatment and eventually go away on their own, according to Go Knoxville. Veterinarians may also use surgical removal or a technique called crushing, which irritates the wart and causes an immune response.
Warts typically appear as raised, rough areas, notes Go Knoxville. They are a common ailment, and many puppies get them. As the puppy's immune system strengthens, the warts disappear, although they may come back if the dog's immune system becomes compromised due to illness or old age. However, there are also dangerous cancers with similar appearances, so a veterinary exam and biopsy are a good idea.
There are several types of surgery that can successfully remove warts, according to PetWave. Cryosurgery, or freezing the warts off, is a common technique. Some vets cut them out, and others use electrosurgery, which burns the wart way. Dogs generally only need sedation and local anesthesia for these types of surgery. More difficult cases may require laser surgery, which requires general anesthesia.
Some medications can also treat canine warts, claims PetWave. Azithromycin can cause outbreaks of warts to go into remission. Interferon can also cause the warts to go away, but it often has side effects, such as dizziness, nausea and joint pain.