Cold & Flu Bomb 3 drops Oregano, 3 drops melaluca (tea tree), 3 drops Sheild or 4 Thieves. For extra *punch*, take 2 drops of Frankincense under your tongue each day! Works for Strep Throat, too! Drink lots of fluids, especially Lemon water! Remember that a glass of water with a couple drops of Lemon EO acts as a gentle detox, relieves sore throats and keeps your lymphatic system moving.