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.
One way of using apple cider vinegar to prevent fleas is to allow the dog to have it taken orally. All that you need to do is combine one tablespoon of apple cider vinegar in your petâs water. It will gradually seep into the skin, which fleas will find to be unpleasant.