A blend for Irritable Bowel Syndrome symptoms: 5 drops of Sweet Orange, 4 drops of Bergamot, 3 drops of Peppermint, 2 drops of Marjoram, add to 2 oz of a base cream and apply to belly and lower back every few hours. Never pour essential oils direct or undiluted in water or to your skin: mix a few drops of essential oil in a base oil, whole milk or cream, and add it to bath water, or a shower gel. 5 to 10 drops of essential oil are sufficient per 10ml of base oil.