Cutaneous horns are a relatively uncommon skin condition in which a growth resembling a horn or a cone-shaped protuberance appears on the dog's skin. What are the causes of this condition, and what can be done to treat it?Cutaneous horns in dogs can be caused by a variety of factors, including allergies, infections, trauma, and tumors. The most common cause is a skin infection caused by the bacteria Pseudomonas aeruginosa. Treatment options vary depending on the underlying cause, but may include topical medications, antibiotics, and surgery. It is important to seek veterinary care as soon as possible if your dog is exhibiting symptoms of cutaneous horns, as early treatment can help prevent further complications.