Citronella is a very popular ingredient to use in insect repellent. However, the benefits of citronella do not stop there. It is also known as an antifungal and anti-inflammatory. Citronella oil has the ability to destroy fungus and kill cells that cause infection. The combination of both its antifungal and anti-inflammatory properties can lead to faster wound healing because it kills parasites. The pleasant citrus scent of the citronella can lift the mood when used in perfumes or as a flavor additive.