Lemongrass is a plant in the grass family. There are over 100 lemongrass species, including Cymbopogon citratus, which is often used in foods and medicine.

Lemongrass leaf contain chemicals that might help prevent some bacteria and yeast from growing. Lemongrass also contains chemicals that might relieve pain and swelling.

People use lemongrass for stomach pain, dandruff, high cholesterol, gingivitis, thrush, and many other conditions, but there is no good scientific evidence to support these uses.

Lemongrass is likely unsafe when taken by mouth during pregnancy. Lemongrass can stimulate the uterus and menstrual flow, which might cause a miscarriage. Stay on the safe side and avoid use.

Some medications are changed and broken down by the liver. Lemongrass might change how quickly the liver breaks down these medications. This could change the effects and side effects of these medications. Consult with your doctor before using lemongrass.

(https://www.webmd.com/vitamins/ai/ingredientmono-719/lemongrass)

Lemongrass is often used in cooking and as a part of tea mixes. You can also brew lemongrass by itself.

Use 1 teaspoon of lemongrass for 1 cup of boiling water. Add honey or lemon as desired. Let it steep for couple of minutes.