The cause of Plummer-Vinson syndrome is unknown; however, genetic factors and nutritional deficiencies may play a role. Women are at higher risk than men.
Washing Your Dog with Apple Cider Vinegar. 1  1. Make a rinse to improve your dog's skin and coat. 2  2. Clean out your dog's ears using ACV. 3  3. Spray your dog's coat to repel fleas.  4. Bathe in ACV-soap mixture to fight 1  fleas. 5. Use a flea comb to remove the fleas.  6. Rinse your dog.
Holistic Treatment for Dogs Using Apple Cider Vinegar. Be careful in your use of apple cider vinegar when your dog's skin is extra raw and inflamed. In fact, in most cases you should dilute apple cider vinegar with equal amounts of water for skin treatment. You can apply apple cider vinegar directly by rubbing it into your dog's fur, or mix it in a sprayer and spray effected patches of skin whenever necessary (watch out for their eyes). Adding up to a tablespoon or so of unpasteurized apple cider vinegar to your dog's water or food each day can also be a great way to treat dog skin allergies and ailments from the inside.