Insect repellent – When used together with citrus essential oils, this plant oil can help ward insects away. Expectorant – Clove bud oil is also used to help ease respiratory problems, such as cough, colds, sinusitis, asthma, and tuberculosis. In fact, chewing on a clove bud is said to help sore throats. The health benefits of clove oil can be attributed to its antimicrobial, antifungal, antiseptic, antiviral, aphrodisiac and stimulating properties. The oil is used for treating a variety of health disorders including toothaches, indigestion, cough, asthma, headache, stress and blood impurities. The most important and common use of clove oil is in dental care. Several toothpastes, mouth wash and oral care medications contain clove oil as an important ingredient.