Topical home remedies that treat dog itch include oatmeal, apple cider vinegar and herbal rinses. Oral home remedies include fish oil supplements, flax seed oil supplements and apple cider vinegar.
Spraying a dog with a solution of diluted apple cider vinegar or using the solution to wash the dog can help soothe itching by restoring acidity to the skin. Adding a small amount of apple cider vinegar to the dog's food can help correct internal imbalances that may be contributing to the itching.
Oatmeal cooked to a soupy consistency, cooled and applied to the dog's body can help relieve itching. Leave the mixture on the dog for as long as he tolerates it, then rinse and brush out any residue.
Another way to soothe dog itching is to boil a quart of water, then dunk a tea ball into it filled with peppermint, lavender and rosemary leaves until it cools. Apply the cooled solution to the dog to relieve the itching. For itching accompanied by a bit of redness, use herbs with antibacterial properties in this solution instead. Chamomile, calendula and plantain are some options, and they can be used alone or in combination.
Dry skin is often the culprit when it comes to dog itching, so adding fish oil or flax seed oil to the dog's diet can help add moisture. Feeding it moist food and providing it with plenty of fresh, clean water also helps to moisturize his skin.