The leaves and oil can be used to make medicine. The grass can be used for treating stomachache and digestive tract spasms, high blood pressure, convulsions, pain, vomiting, cough, achy joints, fever, the common cold, and exhaustion. Also, it can be used to kill germs and as a mild astringent.
As an essential oil. Lemongrass oil can be inhaled and used as aromatherapy for muscle pain.
Other ways it works. It might help prevent the growth of some bacteria and yeast. It also contains substances that are thought to relieve pain, reduce fever, stimulate the uterus and menstrual flow.
I've harvested lemongrass. The aroma of lemongrass steeping in hot is heavenly. My kids walked in from school one day and smelled it, and asked, "what is that? It smells so good."