I have used natural methods on my pets and have great success. Brewer's yeast tends to aggravate the itching in dogs, but I recommend Garlic in their food or by mouth. One very important thing is to have your pets on healthy food, not the junk with chemicals and colors and rotted meat. I bathe my dog with shampoo that I put some Tea Tree in and I also use a tablespoon per gallon as a dip. It not only kills fleas and ticks but is an antiseptic type for the skin.
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