Carole had a bad dose of the flu when she woke up. She took 2 drops of Frankincense oil and 1 drop of On Guard oil in a glass of water 3 times on that day and 2 drops of each oil on the bottoms of the arches of her feet as well with no carrier oil. The next morning I said she sounded so much better, by that evening the flu had gone with only some sniffles. I don't know if it is because we got the bug early before it took hold of her or if these oils just killed the flu. Whatever the case it went very quickly.