Herbal sprays for pets use a combination of natural ingredients to help keep your pet clean and healthy. Some of the ingredients used in this type of product include essential oils, herbs, and botanicals such as lavender, lemon balm, chamomile, and tea tree oil. These ingredients may help to repel fleas and ticks, soothe skin irritations, reduce inflammation, and even help to reduce pet odors. Herbal sprays can be applied directly to the coat of your pet and are generally safe for both cats and dogs.