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. Enlist the help of apple cider vinegar in your battle against flies. Apple cider vinegar is a natural fly repellent that you can apply topically to your dog or add to his food and water. Since most dogs donât appreciate the taste, though, your best bet is to dilute apple cider vinegar with water 1:1 in a spray bottle and apply it to your dogâs ears and face.