Citronella oil is an essential oil that's made from the distillation of the Asian grass plant in the Cymbopogon genus. This fragrant grass got its name from the French word meaning lemon balm, due to its floral, citrus-like aroma.
AAdd citronella oil to water in a glass spray bottle. The National Association for Holistic Aromatherapy (NAHA) recommends 10 to 15 drops per ounce of water. Optional step: Essential oils don�t dissolve in water. Consider adding a dispersing agent such as solubol to your solution. Shake the bottle well before spraying.
Citronella oil can cause skin irritation or allergy. When this happens, the area may become red, blotchy, itchy, or swollen.