Look for 100 percent pure lavender oil. Fill a clean spray bottle with 4 oz. of distilled water. Add 4 drops of lavender oil. Shake. Mist your dog lightly about 6 inches from his hair. Rub into coat. Reapply in stressful situations or once per week. You can also spray in crate or on her bed. Scent should last for about 1 week.
This is one natural remedy that you need for a tick bite to help prevent all tick borne diseases including Lyme and Rocky Mountain Spotted fever. Works for people and animals. I always take this with me when I go camping just in case.