Lemongrass essential oil is found most often in cosmetics such as hair conditioner, facial water, lotion, and vinegar for oily hair and skin. Added to water or vinegar and sprayed in the air, on a countertop, or along walls and floors (or on your pet!), it is an insect repellent and attacks fungi by discouraging mold growth. 

An antiseptic wash or compress is used on skin infections, especially ringworm and infected sores.  According to researchers, it is more effective against staph infection than either penicillin or streptomycin. 

Other uses are to reduce headaches, indigestion pain, rheumatism, and nervousness.  One of the ways in which lemongrass decreases the pain of the preceding ailments is by reducing the amount of pain sensations that reach the brain, it also numbs nerve endings, which dulls the intensity of pain.  The scent along is used to decrease irritability and drowsiness.