We chose the essential oils for this blend based on their immune-boosting properties. According to Aromatherapist and author Jeanne Rose, essential oils can actually attack invading viruses and can address the circumstances that lead to a depressed immune system. Essential oils can help to minimize cold symptoms, prevent secondary infections, and in general, support the body’s ecosystem to prevent infectious disease. Unlike the use of antibiotics, applying essential oils before, during, or after an infection, leaves the body in an improved state of health with increased ability to fight off future afflictions. Refer to an online foot reflexology chart to indicate where the lungs, lymphatic system and immune systems are located.