Cold and flu season is here! Many naturally occurring essential oils from plants and spices, such as clove, cinnamon, and tea tree, can ward off unwanted germs. Citrus oils that contain limonene, like lemon or orange, are great for supporting the immune system. Some oils like oregano and thyme have natural anti-viral properties that are important when faced with viral infections. Essential oils can also speed recovery and help relieve symptoms. For example, peppermint provides a cooling sensation for fevers. Eucalyptus is helpful for chest congestion, and oils of myrtle and pine will help clear a stuffy nose.