You can use baby oil to treat a dog's dry skin, but take your dog to the vet first. Dry skin is mostly harmless, but it can also indicate an underlying health problem or condition, such as mites, fleas, or mange.
Before using baby oil on your dog, test a small patch of your dog's skin to make sure he isn't allergic to the baby oil and that it doesn't cause an adverse reaction. After putting baby oil on your dog, gently brush him for an hour or two to help remove the dry skin and prevent it from happening again. While baby oil is a cost-effective treatment plan for dry skin, it is a messy alternative to an over-the-counter or prescribed supplement.