Cools the body relieving symptoms of colds and flu. Fever formula: lemon, fir, cypress, peppermint and eucalyptus governs thermal balance while supporting the fever- “the body’s weapon for defense” in healing and cleansing of infection, bacteria and the burning up of stress chemicals. This combination of essential oils combats bacteria with strong antiseptic and antibacterial properties that burn up the bacteria, or at the very least lows down the its ability to reproduce so the body can regain immune strength. Works wonders to relieve a dull headache and regulate body temperature.