If you use some little eucalyptus oil during the dogs shower (in the shampoo), it will keep the canine off ticks and fleas. If they are on the dogs body, the oiled bathed will kill all the bugs. 2. If your dogs skin is damaged by itching or the bites of an insect, you can blend eucalyptus oil plus others. Answered By: Marcellus Corwin. Date created: Thu, Mar 25, 2021 1:02 AM. Some of the natural moisturizers are vitamin E, aloe vera, and oatmeal etc. In addition, Fruit extracts ...