To promote mental clarity and eliminate fatigue, add 6-10 drops of essential oils to the diffuser. To treat the cold and calm the persistent cough, put 6-10 drops of essential oil onto a tissue and take deep breaths. Alternatively, add 1-2 drops of essential oil to half a cup of water. Stir before gargling each mouthful and then spit. Repeat up to 3 times a day. Do not swallow. To detoxify and fight stress, and treat bruises, acne and cellulite, add 15 drops of essential oil to 50ml of the carrier oil of your choice and massage your body or the specific problem area.