Myrtle (Myrtus communis) is indicated for high and low thyroid Â and reproductive system regulation and smokers cough . Myrtle is an excellent essential oil for symptoms of all coughs, colds, asthma and bronchitis. It is beneficial for any infectious disease. Known as a biblical herb, a dilution of this essential oil balances oily skin and reduces acne through its antiseptic properties. Dilute 4 drops in 1 cup water or 1 tablespoon of carrier oil. Myrtle yields an essential oil from steam distillation from flowering parts of branches. The gentle aroma is suitable for children and sensitive folks. It blends well with Lemon and Lemongrass, Lavender, Cypress, Sage, Sweet Orange and Bitter Orange.