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.
(This will also rejuvenate the coat and help balance your dogâs skin pH levels.) For a shiny, healthy coat mix 1 cup of vinegar with 2-4 cups of water and use as a final rinse. Spray vinegar full-strength on your dogâs coat to normalize the pH balance of its skin. (This is one of my personal favorites!
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.