Lemon grass as herbal medicine for gastrointestinal problems stomachaches, diarrhea, gas, bowel spasms, vomiting, fever, the flu, and headaches Taken as tea, 1 cup every 8 hours. The tea is prepared by boiling about 10 leaves in 2 cups of water, adding sugar to taste and a slice of ginger. Lemon grass oil mixed with other essential oils such as coconut oil is used as a liniment for back pains, rheumatism, neuralgia, sprains and other body pains. Lemongrass oil mixed with other essential oils such as lavender or jasmine oil used in baths or vapor scents can revitalize the body and relieve the symptoms of jet lag, headaches, anxiety and stress related exhaustion. Lemon grass is used in Indian Ayurvedic medicine to treat fevers and infectious illnesses. Lemon grass is also used in Chinese medicine to treat colds and rheumatism.. To treat circulatory disorders, some authorities recommend rubbing a few drops of lemongrass oil on the skin of affected areas; it is believed to wo