The Benefits of Lemongrass: Lemongrass is a tropical herb used in cooking and has a lemon scent and flavor. Lemongrass is added to many Asian dishes to obtain a unique citrus flavor and aroma, and lemongrass tea benefits the digestive system Relieves headaches, reduces stomach pain, relieves abdominal and muscle pain kills germs, acts as an astringent, reduces fever, boosts energy, and relieves digestive cramps