Thieves is a popular essential oil made my Young Living. Thieves has spawned a whole portfolio of products that offer protection from cold and flu viruses, among other things. As the saying goes “Four thieves vinegar can cure the plague.” Nourished Kitchen gives an easy to follow recipe, so you can make your own vinegar. The herbs in the recipe were mentioned by grave robbers during an outbreak of plague in the south of France. The robbers claimed the fragrant herbs protected them. Now we use these herbs to protect ourselves. In fact modern herbalism shows that these herbs do in fact have anti-viral properties. And even if they did not have anti-viral properties, the vinegar is delicious!