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.
Apple Cider Vinegar for Fleas, Dog Allergies, and Wellness. Every home with dogs should have apple cider vinegar. It's a remedy with multiple uses for dogs: repelling fleas, alleviating allergies, arthritis, establishing correct pH balance. You can also give apple cider vinegar to cats and horses. Dosage and Instructions: Start with a one-teaspoon dose mixed into your dog's food twice a day for a 50 lb dog (adjust accordingly by weight) and if necessary increase up to about 1 tablespoon twice a day for the same size dog.